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High School/JEE/NEET/IPhO Physics | 17-19 Yrs

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  1.  
    2. how can i watch this video
    4 months ago by Ajeet Kumar

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  2.  
    3. Best
    4 months ago by Atharv Prakash Sheth

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  3.  
    4. How did we convert y^3 to 3y^2.dy/dx ?
    5 months ago by

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  4.  
    5. are these notes Enough for JEE advanced and iPho ?
    7 months ago by

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  5.  
    6. how
    11 months ago by Sejal Mittal

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  6.  
    7. how
    11 months ago by Sejal Mittal

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  7.  
    8. Hi sir whenever I am trying to open set it does not open at all resolve this issue plz.i have already log in and earlier I have also opened this set before but now it doesn't
    11 months ago by

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  8.  
    9. sir , your lectures are really good pls make these lectures in hindi
    11 months ago by

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  9.  
    10. i need to be better
    1 years ago by

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  10.  
    11. Know sir
    1 years ago by Bittu Kumar Singh

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  11.  
    12. Hmmm
    1 years ago by Abhishek

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  12.  
    13. Where i found notes
    1 years ago by

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  13.  
    14. starting from very basic level now..sir should we attend this lectures or should i study from your onion physics lectures...in deep problem sir please guide me on the basis of this point..
    1 years ago by devansh

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  14.  
    15. GOOD
    1 years ago by PRITHWI SARKAR

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  15.  
    16. sir in the base change property which you wrote instead of dividing can we multiply?
    1 years ago by

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  16.  
    17. Please make the DPYQ series for JEE Mains 2022 available on the website as well. Thank you
    2 years ago by

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  17.  
    18. how to use workshop
    2 years ago by

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  18.  
    19. Best
    2 years ago by undefined

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  19.  
    20. Ty
    2 years ago by

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  20.  
    21. Hgtyi
    2 years ago by

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  21.  
    22. Ok
    2 years ago by

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  22.  
    23. How can be a man is that level successful
    2 years ago by undefined

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  23.  
    24. at 5;40 on solving expression we get a quadratic eqn on solving which we get two values which are 2 or 6.also plz tell how to check the solutions of the practice questions given in between videos sir
    2 years ago by kamalesh

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  24.  
    25. Sorry
    2 years ago by

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  25.  
    26. please give questions like the last problem in the video
    2 years ago by

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  26.  
    27. the last problem was mind opening
    2 years ago by

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  27.  
    28. how 4 dx square become zero?
    2 years ago by Aparajita

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  28.  
    29. Thank you sir
    2 years ago by Subhasish Rabikanta

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  29.  
    30. One of the best lecture for neet
    2 years ago by undefined

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  30.  
    31. This video is for who is learning physics for first time and also helpful for those who didn't have basics
    2 years ago by undefined

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  31.  
    32. This video is for who is learning physics for first time and also helpful for those who didn't have basics
    2 years ago by undefined

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  32.  
    33. DPP are not downloading?? Plse reply me
    2 years ago by Anupma Pushkar

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  33.  
    34. DPP are not downloading?
    2 years ago by Anupma Pushkar

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  34.  
    35. Hello sir how to find main function
    2 years ago by ishani yadav

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  35.  
    36. Thanks sir
    2 years ago by undefined

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  36.  
    37. Sir I did not Understand the Differentiation of 3/x^6
    2 years ago by
    Ans 1 ->
    3.x^-6=3.(-6)x^-6-1= -18x^-7 this is the ans.apply basic first formula
    2 years ago by kamalesh

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  37.  
    38. From where I can get solutions of qset
    2 years ago by

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  38.  
    39. Sir from where we will get solutions for Questions sets?
    2 years ago by Maahi chandel

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  39.  
    40. At 9:08, what is the process through which d^2 y/d x^2=6 was obtained?
    2 years ago by

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  40.  
    41. At 6:11 how can we consider 4dx^2 to be a very small quantity?
    2 years ago by

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  41.  
    42. how to increase the speed of this video to 1.5x
    2 years ago by Shatabdi Malik

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  42.  
    43. How to open qesets
    2 years ago by

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  43.  
    44. sir it possible to give class notes of every lectures
    2 years ago by Krishnn Kumar

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  44.  
    45. Sir after watching modules I am unable to solve incoming respective Quest What should I do ????
    2 years ago by

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  45.  
    46. Ashish sir your are a legend . Hats off to you By your support I will crack JEE with AIR 1
    2 years ago by

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  46.  
    47. sir speed increaser 1.5x and 2.0x missing please fix this problem
    2 years ago by Prince Bhat

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  47.  
    48. sir i was having a doubt regarding second deriviative that my d2y/dx2 of cardboard question is coming as 24y-96=0 now how should i find whether y=2 is maxima or minima
    2 years ago by aryan mishra
    Ans 1 ->
    for this you have to study graph of a cubic equation and find the local maxima and local minima of that equation
    2 years ago by

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  48.  
    49. THANKS SIR
    2 years ago by

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  49.  
    50. sir how come log x with base a can be written as lnx/lna ?
    2 years ago by

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  50.  
    51. Sir question set is not available ?
    2 years ago by Nityanand Tripathi

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  51.  
    52. How will we solve - y = (1 3x)5, find dy/dx? Please solve.
    2 years ago by

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  52.  
    53. It is not necessary that if dA/dx=0 then Area will be maximum. It can be minimum and for that we use second differentiation check. Am I Correct or not ?
    3 years ago by PREET DESAI

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  53.  
    54. In the last question, the answer we get is minimum value of Area of the triangle and its maximum value extends to Infinity. Please Sir confirmed it and tell whether I said correct or not, so it can help to many viewers and they cannot confused.
    3 years ago by PREET DESAI

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  54.  
    55. how to play Bengali language in this video
    3 years ago by Aritra Nandi
    Ans 1 ->
    video is only avaialable in English langauage in indian and global accent
    2 years ago by aryan mishra

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  55.  
    56. basic different between x is the function of y and y is the function of x
    3 years ago by Ritik Kumar

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  56.  
    57. Best
    3 years ago by Mohd Zaid
    Ans 1 ->
    BEST
    3 years ago by Rudraksha agrawal
    Ans 2 ->
    best of all time
    3 years ago by Harsh Sameer

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  57.  
    58. Nice
    3 years ago by

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  58.  
    59. sir i habe attempted que-set 1 of basic differentiation it is not showing my result or analysis
    3 years ago by aryan mishra

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  59.  
    60. SIR, YOU ARE THE BEST TEACHER I HAVE EVER SEEN. YOUR VIDEOS ARE VERY AMAZING.
    3 years ago by ARJUN PANDEY

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  60.  
    61. If y = 8x7+5vx+3/x6 find dy/ dx . please solve step by step
    3 years ago by Sachin Kumar

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  61.  
    62. can we watch a video in 2x..? plz Add this feature it will be beneficial for many students..
    3 years ago by Aman Singh

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  62.  
    63. in the last question x4y²+siny². sir i think there will be 4x³y²+x42ydy/dx +cosy²+sin2ydy/dx .. sir you skipped sin ... am i right or not please clear my query?
    3 years ago by Ya Me

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  63.  
    64. SIR, YOU ARE THE BEST
    3 years ago by ARJUN PANDEY

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  64.  
    65. please add play back speed so that it is convenient to few students
    3 years ago by k lakshmanan

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  65.  
    66. why there is no playback speed option
    3 years ago by k lakshmanan

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  66.  
    67. good video
    3 years ago by Radheyshyam Jangir

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  67.  
    68. Wonderful
    3 years ago by shyam prasad

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  68.  
    69. Nice
    3 years ago by Priya Khradia

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  69.  
    70. [2:45] can we do by considering y = mx then put it in equation, then differentiate by chain rule ??
    3 years ago by

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  70.  
    71. very nice explanation sir short and crisp lecture osm sirr..... thanku sir for making this wonderful videos....
    3 years ago by

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  71.  
    72. what is a slope , how can I relate tanx I. e p/b with change in hypotenuse
    3 years ago by Lucky anand

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  72.  
    73. while writing notes is not seen due to conversatoin words on screen... please try to decrease font size of conversation words...
    3 years ago by V.Gopal

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  73.  
    74. sir please upload all vidios lecture in hindi midium
    3 years ago by Rajan Kumar

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  74.  
    75. Sir answers khan se milenge Quset ke
    3 years ago by
    Ans 1 ->
    Well, You can find them on Google
    3 years ago by Pulkit Garg

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  75.  
    76. While finding the value of dy/dx Why sir did not use 'implies that' symbol ?
    3 years ago by Rounak Padhan

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  76.  
    77. 01. Is it always neccessary to take 'x' and 'y ' as variables ? Can other alphabets in english also be used as variables ? 02. Why we always consider 'x' as independent variable and 'y' as dependent variable ? Is there any rule for it ?
    3 years ago by Rounak Padhan

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  77.  
    78. It's some what difficult to do than the other one's
    3 years ago by Krishna Chakri

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  78.  
    79. sir in Q. no. 8 of Q. set 1, we are given y in terms of x. And we are said to find (dy/dt) when x=2. Now my solution was, (dy/dt) = (dy/ dx) * (dx/ dt). (dy/dt )= (8-3x^2)* (dx/dt) Now, when x=2, then (dy/dt )= { 8- (3* 2^2)}* (d2/dt ) and since derivative of a constant is 0, therefore (d2/dt ) should also be equal to 0. and therefore (dy/dt )= 0. but then the solution is given something else. Where am I wrong?
    3 years ago by INDRA CHOUDHURY
    Ans 1 ->
    dx/dt is the same as velocity as velocity is displacement/time.
    3 years ago by rudy vemp

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  79.  
    80. sir should we have to buy modules? if yes then from where?
    3 years ago by Shweta singh
    Ans 1 ->
    yes you can buy physics galaxy modules.They are just fabulous and classy.
    3 years ago by

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  80.  
    81. Are these videos available in Hindi also
    3 years ago by Arav Gupta

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  81.  
    82. sir pls update physics galaxy app.....app is not responding properly sir lectures are not comming sir
    3 years ago by RAGHAV PEDDIREDDY

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  82.  
    83. respected sir, we should give this video lecture in half hindi ,because it will be easier to understand....??
    3 years ago by Snehal Ghaytadak

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  83.  
    84. how to use formulae i haven't understand
    3 years ago by Kundan Kumar

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  84.  
    85. ex i haven't understand how y change into yx
    3 years ago by Kundan Kumar

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  85.  
    86. I am not getting rewind options in any videos? why
    3 years ago by Ravi Prem

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  86.  
    87. sir actually the captions are coming in between the writing board so it's difficult to see what you are actually doing but after wasting 1 and half years of my iit jee prep I have got the best physiscs content I appreciate the level of content given by you
    3 years ago by nilesh puran

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  87.  
    88. sir please add some feature to speed video at 2X and 1.5X at least
    3 years ago by undefined

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  88.  
    89. Sir when will you upload your theory videos in Bilingual language?
    3 years ago by Umesh Pratap Singh

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  89.  
    90. Server Error in '/' Application.
    3 years ago by bharadwaj.physics.india

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  90.  
    91. #1.57 what if y=x both y,x are dep variables / in dep variables
    3 years ago by bharadwaj.physics.india

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  91.  
    92. how diffrentiaion of root under cos x is -sinx/2*root under cosx ......the correct answer will be 1/2root under cos x
    3 years ago by

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  92.  
    93. Sir, at 7:29 , it should be dy/dt instead of dy/dx? Thank you, sir
    3 years ago by Achyuthan Karthikeyan

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  93.  
    94. Why in first example e to power minus sine X become e to power minus sine X times minus cos X after differentiation instead it is taken positive
    3 years ago by Amit Kumar

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  94.  
    95. Are these lectures has covered every concepts of JEE main and advanced
    3 years ago by Amit Kumar

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  95.  
    96. Excellent contents
    3 years ago by zaara khan

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  96.  
    97. Dear sir, I want to ask that In this lockdown for 11th class students which is the chapter to start with?
    4 years ago by shikhar dixit

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  97.  
    98. In the first question,why is differentiation of -br^2/x^2 not 0 as b is a constant and differentiation of a constant is 0 ?
    4 years ago by

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  98.  
    99. SIR, WHEN I AM CLICKING ON QUESTION SET 4 TO ATTEMPT THE MCQs , IT IS SHOWING SOME SERVER CONNECTION ERROR . PLEASE LOOK INTO THE ISSUE AND RESOLVE IT SIR .
    4 years ago by SHRUTEE DALAI
    Ans 1 ->
    no sir it is solved
    4 years ago by SHRUTEE DALAI

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  99.  
    100. Sir,how you differentiate sin square u.????
    4 years ago by Vivek Kumar Singh
    Ans 1 ->
    its easy first take sin(u) as x then u will have to differentiate x^2 and x^2 differentiation is 2x put value of x= sin(u) then u will get 2sin(u) then differentiate sin(u) which is cos(u) then multiply cos(u) and 2sin(u) = 2sin(u)cos(u) which is also equal to sin(2u)
    4 years ago by Arunkumar DURAISAMY

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  100.  
    101. Sir how to solve (cos ^4x +sin ^3x) ^3/2....[^ here is power]
    4 years ago by Priyanka Priyadarshini Behera

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  101.  
    102. why 4dx^2 was ignored ?
    4 years ago by Jainisha Pathak

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  102.  
    103. sir in example 2 how to find minimum value of volume because both times we equate to zero
    4 years ago by Yash Veer Nagar

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  103.  
    104. if y =(cos^4x sin^2x)^3/2 then find dy/dx?
    4 years ago by Yash Veer Nagar

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  104.  
    105. if y =(cos^4x sin^2x)^3/2 then find dy/dx?
    4 years ago by Yash Veer Nagar

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  105.  
    106. if y =(cos^4x sin^2x)^3/2 then find dy/dx?
    4 years ago by Yash Veer Nagar

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  106.  
    107. sir in first example why isnt there e^-sinx .-cosx where did the minus sign go ?
    4 years ago by Yash Veer Nagar

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  107.  
    108. r=[1+sec theta] sin theta how to solve this differentiation questions.my and is not coming
    4 years ago by laxmi kumar
    Ans 1 ->
    dy/dx = (sec theta. tan theta) sin theta (1 sec theta) cos theta .
    3 years ago by

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  108.  
    109. I need this video lecture
    4 years ago by Sandeep Stark
    Ans 1 ->
    already on website/youtube
    3 years ago by Vedant Rahul Patil

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  109.  
    110. PleaseSir I want hints to QuSet3and4 as soon as possible
    5 years ago by BAMDEV BHATT

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  110.  
    111. sir can I have the solution of question set?
    5 years ago by DEV KAMLESH PATRA

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  111.  
    112. How did you find dy²/d²x? There was no rule told about this earlier.
    5 years ago by Samant Kumar Mishra

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  112.  
    113. Sir, can we prepare for JEE ADVANCED by your videos
    5 years ago by Prabhash Rai

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  113.  
    114. this concept is crystal clear that now i can solve in my mind... thanks !
    5 years ago by Yogesh Vashisth

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  114.  
    115. 12 lectures in Hindi language are available please reply
    5 years ago by mis Era
    Ans 1 ->
    No
    5 years ago by Aritra

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  115.  
    116. A cubical vessel with opaque wall is so placed that the eye of the observer cant see the bottom but can see the entire wall CD . A small object is placed at O at a distance b=10 cm from corner D . What minimum depth of water (µ=4/3) should be poured into the vessel which will enable the observer to see the object ????
    5 years ago by DHRUV KUMAR

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  116.  
    117. Pls send some useful videos on Tension Topic Class 11th
    5 years ago by DHRUV KUMAR

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  117.  
    118. sir are the videos updated with the change in syllabus that keeps happening with time ?
    5 years ago by Blake Langer

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  118.  
    119. sir u are very helpfull sir u r great sir thank u sir ur explanation is wonderfull sir
    5 years ago by maroof husaini

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  119.  
    120. how y= x+7 turns into y=x (square )+3x+5?
    5 years ago by Azad Khan

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  120.  
    121. Nice prepare in this question is
    5 years ago by Chandan Rout

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  121.  
    122. Can it be played in Hindi language.
    5 years ago by Md. Saalim ahmed

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  122.  
    123. Booster classes videos
    5 years ago by Raja babu

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  123.  
    124. Sir these videos are enough for NEET preparations or else i should do something extra apart than videos? Sir please let me know as soon as possible! Thank you.
    5 years ago by Mehul Ajmera

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  124.  
    125. sir please upload some videos on error analysis instruments(Vernier callipers etc) as questions from it frequently comes in JEE MAIN. and also missed at coachings . please sir
    5 years ago by rahul jain

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  125.  
    126. This is test query
    5 years ago by Test Mail 123
    Ans 1 ->
    Hi
    5 years ago by Physics Galaxy

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  126.  
    127. Sir Can u please say me the process that how can I download notes of your classes
    5 years ago by Sai Tanmayee
    Ans 1 ->
    There is no way to download the notes of the classes. However you can buy them online from amazon, go to recommended books to find them
    5 years ago by Smile
    Ans 2 ->
    There is no way to download the notes of the classes. However you can buy them online from amazon, go to recommended books to find them
    5 years ago by Smile

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  127.  
    128. What is the basics of differentiation?//
    5 years ago by DHRUV KUMAR

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  128.  
    129. can't understand the differentiation at 4:46
    5 years ago by Nishant pathak

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  129.  
    130. Sir I am an aspirant of NEET and Iam going through the materials of allen institute . would you prefer any other books or it is enough to solve the material of allen and previous question papers
    5 years ago by Sakshin Airani
    Ans 1 ->
    no its not enough until you are self satisfied , so kkep going try out more new books till day before the exam
    5 years ago by mandy dubey

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  130.  
    131. Sir, do your videos cover all the topics and concepts necessary for JEE Advanced ? or is it only for mains level ??
    5 years ago by Jeet Sarkar

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  131.  
    132. Can I completely rely on these videos if I am only preparing for jee mains?
    5 years ago by Anugrah Masih
    Ans 1 ->
    no you can't , these are for upsc prelims paper
    5 years ago by mandy dubey

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  132.  
    133. Sir, can you please make a separate playlist of videos excluding the topics which are not required for jee mains. I will be very thankful to you sir, regards.
    5 years ago by Anugrah Masih

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  133.  
    134. Q.1) find dy/dx if y=x(dy/dx) at x=2 a.4 b.5 c.6 d.7 Q2) y=sinx/(sinx cosx) find y'
    5 years ago by Amish Kumar Singh

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  134.  
    135. What is y prime and f prime x?
    5 years ago by Vikram Karel
    Ans 1 ->
    They are used as notations for dy/dx for satisfying different needs (at one place for a function and at other place for y=f(x)...,etc.)
    5 years ago by TechDocs. Tutorials

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  135.  
    136. What will be the differentiation of (12-2y)^2 y w.r.t y
    5 years ago by

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  136.  
    137. why do we represent dy/dx as y'?
    5 years ago by Gollapinni Raghav Srinivas

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  137.  
    138. sir how to got that -2 in send step plzz say sir..
    5 years ago by Jeevan.G Jeevan.G
    Ans 1 ->
    we have applied chain rule to differentiate [12-2y]^2
    5 years ago by Shashwat Singh

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  138.  
    139. sir here how to find d^2y/dx^2 plzz say sir
    5 years ago by Jeevan.G Jeevan.G

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  139.  
    140. sir how you have got differentiation of y^3 with respect to x as 3y^2.dy/dx,in first example
    5 years ago by vatsal shukla
    Ans 1 ->
    as you are differentiating wr to x
    5 years ago by Shashwat Singh

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  140.  
    141. Is it possible to start whole physics,chemistry
    5 years ago by Isha.
    Ans 1 ->
    yes , am doing it
    5 years ago by Pranav Kumar

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  141.  
    142. Good
    5 years ago by Ashutosh

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  142.  
    143. thanx sir u r great
    5 years ago by Laxmi rajwade

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  143.  
    144. Can this video are available in hindi ?
    5 years ago by Mohit Pal

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  144.  
    145. Can u provide answers of qu sets
    5 years ago by Neha

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  145.  
    146. WHEARE ARE SOLLUTION
    5 years ago by sankalp

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  146.  
    147. Nice
    5 years ago by Harshit Patidar

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  147.  
    148. Truly nice selfless effectiveefforts for society bit This total videos made with English language inThe INDIA even this site works for global voice accent ,but it's not made for those aiming for jee from rural areas asperant who's English is weak why this all stuff doesn't made with our national language and after it in English Because when we make something useful for global society our society should be preferred like Amit Tyagi sir and then others
    5 years ago by Dharamjeet Singh

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  148.  
    149. Is there something about logarithm
    5 years ago by Siddhant Kothiya
    Ans 1 ->
    ya surely in differentiation subheadings
    5 years ago by Lalita Rani

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  149.  
    150. how will derivative of negative 5 by 6 be 6
    5 years ago by Priyansh Gupta

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  150.  
    151. can the Integration of cos²x be written as cos³x/3
    5 years ago by Tanmay Goyal

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  151.  
    152. thanku so much sir i love u sir ji tusi great ho tusi to bgwan ho mere aagya smj m ....physic is easy when u teach sir
    5 years ago by Hemant rathore

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  152.  
    153. I did not under stood direct differentiation formulae 2nd
    5 years ago by Shubham gujarati

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  153.  
    154. How can be derivative of -5/6 will be 6 ?
    5 years ago by Durvesh Rajan Dambe

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  154.  
    155. The momentum of a moving particle given by p =tlnt . Net force acting on this particle is defined by equation F =dp/dt . The net force acting on the particle is zero at time.
    5 years ago by Dharamjeet Singh
    Ans 1 ->
    Force will be zero at time t = 1/e
    5 years ago by Sivaprasad S

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  155.  
    156. sir where can I find limits?
    5 years ago by Jambu Ganesh

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  156.  
    157. what we will do by point we are getting while solving question ???
    5 years ago by Saurabh Thakur
    Ans 1 ->
    Confidence booster :p
    5 years ago by Takumi Usui

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  157.  
    158. sir how can i get your video in hindi because i am a hindi medium student.
    5 years ago by sameersaurav
    Ans 1 ->
    bro its very easy english that sir is using in his videos :) i am in english medium and many of my friends are in hindi medium , they never got language problem with ashis arora sir.. so if you dont know these common engish , how you are dreaming for iit ???
    5 years ago by Saurabh Thakur

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  158.  
    159. please explain the differenciation of dv/dy in example 2
    5 years ago by vatsal

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  159.  
    160. sir you not added binomial of physics
    6 years ago by Dharamjeet Singh

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  160.  
    161. RRW949 is reco code
    6 years ago by Ask

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  161.  
    162. It looks similar to the product rule, than can't we apply it here??
    6 years ago by Nevil Tanna

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  162.  
    163. What will be the differentiation of inverse of sin(x)
    6 years ago by Surendra Singh Payal
    Ans 1 ->
    1/(1-x^2)^1/2
    6 years ago by vinayak agrawal
    Ans 2 ->
    Put arcsin(x)=t. =>x=sin(t) Differentiate both sides wrt x, we get 1=cos(t)*d(arcsin(x))/dx; d/dx(arcsin(x))=sec(t)=1/(1-x^2)^0.5
    6 years ago by Aakhyat Singh

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  163.  
    164. A car of mass 800 kg moves on a circular track of radius 40 m. If the coefficient of friction is 0.5, then maximum velocity with which the car can move is
    6 years ago by Varun Srinivas
    Ans 1 ->
    10(2)^.5
    6 years ago by Vasu Mudgal

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  164.  
    165. sir,how can i download ebooks of PHYSICS GALAXY
    6 years ago by Supratyush Pratyay
    Ans 1 ->
    https://www.physicsgalaxy.com/download
    6 years ago by

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  165.  
    166. Can you share real word example?
    6 years ago by Ayana Mukherjee
    Ans 1 ->
    waiting for reply
    6 years ago by Ayana Mukherjee
    Ans 2 ->
    Population grows exponentially while food resources algebraically . We usually have questions containing preys and predators and their dependence and are asked to find the outcome of a certain situation
    5 years ago by Adarsh Mishra
    Ans 3 ->
    And also, areas of all 2d shapes and volumes of all 3d objects are pretty much derived from integration.
    5 years ago by Adarsh Mishra

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  166.  
    167. Electro statics
    6 years ago by Gnanadeep

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  167.  
    168. Also explain me the second derivatives of second and third sum
    6 years ago by suraj

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  168.  
    169. Sir in first sum my second derivatives is negative you said that it is positive can you explain me the whole step
    6 years ago by suraj

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  169.  
    170. Sir in the last question in which we have to find dy by cc and we get a answer dy by dx is 8x 3 sir there is a point in which you told to ecape 4dx square why you did that
    6 years ago by ASHISH SURYAWANSHI
    Ans 1 ->
    Ya sir I also not get that point that 4dx2 = 0 than why 3dx =3 Plz sir I also to get that point 4dx2=0 than why3dx=3?????
    5 years ago by Hemant rathore

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  170.  
    171. sir how does differentiation of root of cosx become -sin x?
    6 years ago by Bhakti S

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  171.  
    172. Is the videos for basic tools for neet students also .
    6 years ago by Shubhansh Giri
    Ans 1 ->
    yes
    6 years ago by Anurag Bai

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  172.  
    173. Derivative I don't know
    6 years ago by Dharamjeet Singh

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  173.  
    174. shall i get detailed answer of this question: y = (x^3 a^3)/(x a) then dy/dx = ? i am unable to differentiate it
    6 years ago by Aachal Modak

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  174.  
    175. sir i am not getting differentiation of y = (ax b)^2 how to solve
    6 years ago by chaitanya deshmukh

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  175.  
    176. sir i am not getting y = (ax b)^2 how to solve
    6 years ago by chaitanya deshmukh

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  176.  
    177. Please say me about calculus in real life? Why it is used
    6 years ago by HariHaran

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  177.  
    178. where i can get solutions for QuSET ?
    6 years ago by shodhan t shetty

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  178.  
    179. sir please add solutions of the all QuSet because sometimes it is very difficult to solve question and after many try if we do not get the right answer it hurts in town or village area there is no good teacher available to whom we the students can ask for help you provide us a EXCELLENT PLATFORM to study Thank You So Much Sir For Your GREAT SUPPORT
    6 years ago by 1 2 3 Let us Go Now

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  179.  
    180. NIce
    6 years ago by Ishan Priyadarshi

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  180.  
    181. Its derivative is -sinx / (2cosx^1/2)
    6 years ago by Harshal Jain
    Ans 1 ->
    wrong answer
    6 years ago by Harshal Jain

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  181.  
    182. Sir,pls tell me how does dt/dx of cosx^1/2= -sinx. It's differentiation should be -sinx^1/2
    6 years ago by Tuba Tarique

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  182.  
    183. can i know . where can i study the chapter UNITS AND MEASUREMENT . NOT ABLE TO FIND IT . pl avoid me the LINK
    6 years ago by Ayan Kumar Bajpai

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  183.  
    184. Sir where can I find your booster classes
    6 years ago by Abhishek patil

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  184.  
    185. Sir in the lecture module 3- intro to differentiation, in the second example we have neglected the value of 4dx square since DX is a very small quantity so its higher powers will be also. OK Sir.. But we have not neglected the value of 3dx sir here also DX is a very small quantity But why we have not neglected it he And our answer comes to 8x 3 Why the answer is not DX/dyis equal to 4 DX 8x 3 Or only 8x if we neglect other values containing DX Why sir ????
    6 years ago by Shivank Joshi

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  185.  
    186. Sir why we have neglected 4dxraised to power 2 since DX is a very small quantity OK But why we have not neglected 3 DX here also DX is a very small quantity.....
    6 years ago by Shivank Joshi

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  186.  
    187. THANK YOU VERY MUCH SIR . I JUST WATCHED YOUR VIDEOS WITHOUT TAKING ANY COACHING I JUST WATCHED YOUR VIDEOS AND COVERED ENTIRE SYLLABUS WITH GOOD APPROACH . ONCE AGAIN THANK U SIR . YOU ARE DOING A VERY NOBLE WORK.
    6 years ago by Jatin Arun
    Ans 1 ->
    Really you are right bro... Same with me...
    6 years ago by Gaurav Chauhan

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  187.  
    188. Sir, What is zero vector?
    6 years ago by Amit Vikram Raj
    Ans 1 ->
    which does not have any magnitude but is having some direction.
    6 years ago by Mohammad Raza

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  188.  
    189. Good Best for everyone
    6 years ago by Kamal Kumar Sharma

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  189.  
    190. Sir very very please ..... Basics of limits ?? video ?? ??? ?? upload ?? ????? ? !
    6 years ago by Amit Vikram Raj

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  190.  
    191. In solution of 1st example why we cut y by 5x and 3
    6 years ago by ASHUTOSH SHARMA
    Ans 1 ->
    since y=5x 3
    6 years ago by Nitta. Venkata Neelraj

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  191.  
    192. can i download this video?
    6 years ago by Chethan S

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  192.  
    193. Gud
    6 years ago by Ghanapuram Saikumar

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  193.  
    194. during differentiation of implicit function when we differentiate y terms why we write dy/dx
    7 years ago by 078058 AGARWAL ANIL KUMAR

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  194.  
    195. Resp sir I was asking that your basic lectures advance illustration and brain boosters are enough for JEE advanced point of view if get good feel of physics from them.
    7 years ago by manan singh
    Ans 1 ->
    yes ur right its more than enough but u must refer more books for sums
    6 years ago by nallabothu shashank
    Ans 2 ->
    do u have booster class lectures??
    6 years ago by shodhan t shetty

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  195.  
    196. hello sir myself durgesh please make a video on paper pattern of jee mains
    7 years ago by durgesh santosh patil

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  196.  
    197. sorry sir question is Solve f(x)= x^2+1/x
    7 years ago by N.Sambed Prakash Pati
    Ans 1 ->
    2x-1/x^2
    7 years ago by Rakesh Gupta

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  197.  
    198. sir how to solve f(x)=x+1/x
    7 years ago by N.Sambed Prakash Pati
    Ans 1 ->
    you can solve it by direct differentiation of two terms and also by quotient rule for differentiation.
    6 years ago by Avinash Dattatray Gatkul

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  198.  
    199. Resp sir does brain booster is helpful after compliting basic sessions and advance illustration
    7 years ago by manan singh
    Ans 1 ->
    Yes these are very good.
    7 years ago by Simran
    Ans 2 ->
    do u have booster class lectures??
    6 years ago by shodhan t shetty

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  199.  
    200. Sir how can i get download ur adv vedio S
    7 years ago by Hritik Rastogi

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  200.  
    201. Sir why are you not making more fundamental classes as you did before; it was great?
    7 years ago by Deepesh Pandey

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  201.  
    202. sir please tell me where would i find lecture on topic torque.
    7 years ago by anwesha singh

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  202.  
    203. Wavelength of Waves on vertical string
    7 years ago by Sourabha Bharadwaj B M

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  203.  
    204. Sir please tell me again how i can check the second derivative
    7 years ago by Shiv Prabhat

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  204.  
    205. Sir can you please add some videos on quickly solving numerical calculations
    7 years ago by Prakash Raj

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  205.  
    206. Sir tell me that those videos are enough for as syllabusof jee mains.
    7 years ago by Shiv Prabhat
    Ans 1 ->
    yes more than sufficient
    7 years ago by sujith kumar

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  206.  
    207. Sir in practice questions itisnotshowing next question how to peoced
    7 years ago by Mineshaft bhatdwaj

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  207.  
    208. Sir when the other two volumes available for purchage.I.e.else n mag and mod physics. Plz give me answer sir
    7 years ago by Janipasha

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  208.  
    209. sir where can we find the solutions of Q-sets .
    7 years ago by

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  209.  
    210. Y=12x-3x^3 points where tangent to curve is 0
    7 years ago by Mineshaft bhatdwaj
    Ans 1 ->
    Differentiate n equate to zero. 12-9x^2=0, solving u'll get x=+-2/root3 .
    7 years ago by Manas Shrivastava

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  210.  
    211. sir u said that the website will be updated??When will that be done sir?
    7 years ago by Dhruv Sharma

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  211.  
    212. sir are there videos on working of generator and motor??
    7 years ago by Anushree Wasule
    Ans 1 ->
    x
    7 years ago by sudhanshu

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  212.  
    213. Sir is electrostatic ield energy concept required for jee main? Pls tell sir which modules are not required or jee main in pg lectures
    7 years ago by Ramanan Murali

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  213.  
    214. Y= xdy/dx find dy/dx at x = 2
    7 years ago by vikas
    Ans 1 ->
    0
    6 years ago by Subham Tiwari
    Ans 2 ->
    O
    5 years ago by Shubham gujarati

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  214.  
    215. Y = v1-x/1+x find dy/dx the answer is y/x²-1 please explain sir
    7 years ago by vikas

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  215.  
    216. Is there any similar kind of website for chemistry?
    7 years ago by Ramanan Murali
    Ans 1 ->
    there are various youtube channels for chemistry but not a specific website like this...
    7 years ago by Physics Galaxy

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  216.  
    217. what is this booster classes?
    7 years ago by Sachin chaudhary
    Ans 1 ->
    see this link to understand what are booster classes - https://youtu.be/F5Ocuq5J5OI
    7 years ago by Physics Galaxy

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  217.  
    218. sir i am not able to understand the method of second derivative check as it is not mentioned in the vedio. i know how to use f prime x but iam not able to understand how to find f double prime x.
    7 years ago by manvendra
    Ans 1 ->
    Toget second derivative of x differentiate f prime again wrt x
    7 years ago by Ayush Choudhary

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  218.  
    219. sir i am not able to understand the method of second derivative check as it is not mentioned in the vedio. i know how to use f prime x but iam not able to understand how to find f double prime x.
    7 years ago by manvendra
    Ans 1 ->
    diffrentiate it again wrt x
    5 years ago by kanishk saraswal

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  219.  
    220. sir i want to ask that in classroom of allen you taught these same things as i know sir you have taught AMAN BANSAL means sir after doing all these questions and after seeing all these videos are we able to come in top 100 rank in iitjee (i am talking only about physics context).
    7 years ago by SAPAN MISHRA
    Ans 1 ->
    In classroom there are lot many interactions involved... Aman achieved the position because of his faith and dedication with ALLEN...
    7 years ago by Physics Galaxy
    Ans 2 ->
    sir can't we achieve SUCH success ( UNDER 3000 rank in iitjee ) by faith and dedication with physicsgalaxy.com .. actually sir this is only and the wonderful source of physics learning for me ..
    7 years ago by rudraksh singh
    Ans 3 ->
    It depends upon you. You won't get that much advantage from here that you get from classroom sessions. But remember these all are aids only. If you try to understand the things rather than rote learning you can do much with combination of help from other sources.
    7 years ago by Saksham Hooda

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  220.  
    221. sir are these videos of high school physics good for jee advance preperation?
    7 years ago by ayush kokare
    Ans 1 ->
    these are best for any physics competition on high school level whether kvpy...boards olympiads specially. jee advanced
    7 years ago by Shashank Yadav

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  221.  
    222. How to ask the doubts of quset-1?
    7 years ago by Sudarshana Ghosh
    Ans 1 ->
    As of now not doubt asking facility is there in quesets... if you wish you can attempt quegrid rank boosters in which all question detailed solutions are given...
    7 years ago by Physics Galaxy

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  222.  
    223. Sir in the ist example u cud also write x=y-7? There who is dependent ?
    7 years ago by Sudarshana Ghosh
    Ans 1 ->
    x is dependent here
    7 years ago by N.Sambed Prakash Pati

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  223.  
    224. Sir I want to know that these lectures theory are sufficient for NEET prep. And for physics in NEET which book should I prefer to solve
    7 years ago by Aayush Tambi
    Ans 1 ->
    physics galaxy book is available in market
    7 years ago by Varun Reddy

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  224.  
    225. Sir do we have any facility getting your lecture videos in the form of DVDs or pen drives for certain amount ...if not available why don't start one...pls let me know if we have such facility sir ...pHno: 8179193293
    7 years ago by Abhi Radh
    Ans 1 ->
    i dont think such facality is available .. if you wish to download Pg lectures use app like vidmate or snaptube..as i have downloaded all the lectures from these apps
    7 years ago by Avinash

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  225.  
    226. sir i learnt to find dy/dx.Is there any difference in dy/dx and dy/dt.
    7 years ago by manvendra
    Ans 1 ->
    Actually dy/dx is differentiate with respect to x & similarly dy/dt is differentiate with respct to t.And there is no more difference between them.
    7 years ago by Surya
    Ans 2 ->
    x and t are two different variables... no other difference...
    7 years ago by Physics Galaxy

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  226.  
    227. sir i am laggin behind my plus one portion physics for entrance prep what to do sir
    7 years ago by vishnuv
    Ans 1 ->
    If you are following our videos, then watch these regularly, maximum within 3-4 months you can cover it..
    7 years ago by Physics Galaxy

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  227.  
    228. Thank you very sir
    7 years ago by Pavan
    Ans 1 ->
    You are always welcome to our website - Physics Galaxy...
    7 years ago by Physics Galaxy

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  228.  
    229. Thanks a lot Ashish Sir for creating this wonderful medium and it has helped a lot!! Will you please publish the solutions to Irodov problems it would be really helpful.
    7 years ago by Siddharth Panpaliya
    Ans 1 ->
    All the selected problems of IRODOV are already published either in solved examples or in adv illustrations... you can refere to all these...
    7 years ago by Physics Galaxy

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  229.  
    230. how can get solutions of quesets. it would be really helpful if available.
    7 years ago by SAJAL GUPTA
    Ans 1 ->
    solutions of quesets are not yet published, we will inform our users when it is done...
    7 years ago by Physics Galaxy

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  230.  
    231. sir since our queries are not answered in the interact section under relevant topics...so sir I am bound to post my queries on the main page to drag your attention..
    7 years ago by Aman Jain
    Ans 1 ->
    All queries are answered in INTERACT section as we receive queries in time sequence for reply whether these are posted on INTERACT or below videos...
    7 years ago by Physics Galaxy

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  231.  
    232. Sir what are Boson Classes and how to register for it?
    7 years ago by Sarthak
    Ans 1 ->
    Post general queries in the tab of General queries in INTERACT tab not below the videos of calculus, it distracts other users... and before posting your query, read other queries, you may get your answer...
    7 years ago by Physics Galaxy

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  232.  
    233. Dear Physics Galaxy do I really need to buy a book for JEE preparation. Or YOUR QUE-SET and other practice papers would be enough to clear the exam ?? Hope you respond!
    7 years ago by Nachiketa Dev Sharma
    Ans 1 ->
    Quesets and Quegrid are just sufficient to crack JEE... soon we are also coming up with mock practice papers... that may also help... and if you are aspiring for a very high rank in jee that may need further practice if you feel the need in some topics after attempting all these questions...
    7 years ago by Physics Galaxy

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  233.  
    234. why the rainbow formed in sky is always in a full circle...not in a square or any other shape??
    7 years ago by Aman Jain
    Ans 1 ->
    It is never a full circle... its just a circular arc... its due to the same path difference on the eye of the observer.... BUT why you are posting a query of light in the topic of differentiation... for general queries goto INTERACT tab and open the concerned topic and post your query...
    7 years ago by Physics Galaxy

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  234.  
    235. In the refraction through a glass slab why does the ray of light bends towards the normal at the point of incidence..and why does it bends away from the normal at the point of emergence..what does the change in the speed of light in a medium account for in this phenomenon...please explain in detail the whole at the microscopic level???
    7 years ago by Aman Jain
    Ans 1 ->
    Because rays of light are particles of photons. Ray of light incident on a medium interacts with the particles of medium.
    7 years ago by gurpreet kaur
    Ans 2 ->
    WHY POSTING A QUERY OF OPTICS IN CALCULUS VIDEO... goto INTERACT Tab and post under the section of Optics...
    7 years ago by Physics Galaxy
    Ans 3 ->
    Why you guyz are discussing question of optics below the video of differentiation, it is distracting other viewers... we have provided a separate tab INTERACT on the website for discussion of general queries in all topics... you should care for others by following interaction etiquette...
    7 years ago by Physics Galaxy

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  235.  
    236. sir ,pls reply for that circular question
    7 years ago by Rithik Chopra
    Ans 1 ->
    Why a question of circulr motion you are posting in calculus... it is distracting others... there is a separate section INTERACT where you can post your query in respective topics...
    7 years ago by Physics Galaxy

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  236.  
    237. sir in a convex lens(placed in a rarer medium) since the light ray goes from a denser to rarer medium .. it must bend away from the normal..then why does the lens converges the rays of light(bending towards the normal)
    7 years ago by Aman Jain
    Ans 1 ->
    A query on optics is to be posted either under optics videos or under the optics section of general discussion INTERACT tab... DO NOT POST IN FUTURE ANY IRRELEVANT QUERY BELOW ANY VIDEO... we have separate sections for queries on different topics...
    7 years ago by Physics Galaxy

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  237.  
    238. sir, I have an interesting question of circular motion. if two particles a and b are moving in a circle with angular velocity omega of radius R in an inertial frame. then we have to calculate angular velocity of b with respect to a. this is not my question .my question is that I got two answers for this which are zero and omega .how?
    7 years ago by Rithik Chopra
    Ans 1 ->
    Angular velocity of one object with respect to other can be given by the ratio of relative velocity magnitude of one particle with respect to another in direction normal to the line joining the two particles to the separation between the two... In the case you mentioned you can check it is coming omega and thats the answer not zero...
    7 years ago by Physics Galaxy
    Ans 2 ->
    @Rithik Chopra Why you are asking question of circular motion on calculus page. Ashish Sir has made a section called interact for asking queries. click on interact and ask your query in your topic of question
    7 years ago by radhika jain

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  238.  
    239. sir i want to prepare for IIT which books I want refer pllzzz tell me sir there are so many books by seeing the books i get fear and starts to shiver plz help me sir
    7 years ago by Nanasaheb Patil
    Ans 1 ->
    On our website by november end we are going to start a section of recommended books as well as strategies to prepare for JEE Advance. We will inform you and all our users via mail as this section will start...
    7 years ago by Physics Galaxy
    Ans 2 ->
    sir nov. has gone even dec. is going where is the new section
    7 years ago by Sanat Kumar

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  239.  
    240. sir while deriving mirror or lens formula we already take into account the sign conventions. sir then why while solving problems we apply sign conventions again?
    7 years ago by Aman Jain
    Ans 1 ->
    In derivations of these formula we have taken signs but used variables u v and f which can take up any value depending upon location of object image and focal point in different situations so associating sign convention before substituting the values in these formula is must...
    7 years ago by Physics Galaxy

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  240.  
    241. Does light has mass? if it is there then it must have some momentum....then why momentum of any other body(eg. any vehicle) is greater than the momentum of light since the velocity of light is greater than any moving body
    7 years ago by Aman Jain
    Ans 1 ->
    Light has momentum in its particle nature and these particles we call photons which have rest mass zero... momentum of light is not directly associated only with speed of light... it is given as p = E/c where E is photon energies so it is given as p= h/(lambda)... more details about light momentum and its applications we will study in the topic of special theory of relativity which will be uploaded by end of this year....
    7 years ago by Physics Galaxy

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  241.  
    242. sir what is the moment of inertia of hexagonal disc
    7 years ago by pawn kumar
    Ans 1 ->
    That you need to calculate by finding MI of a triagnle about an axis through one of its vertex and make it 6 times...
    7 years ago by Physics Galaxy

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  242.  
    243. sir...we need booster classes lease help...
    7 years ago by Shubhit Talus
    Ans 1 ->
    Whenever boosters will start, will inform all our students... in the mean time you can cover the syllabus from the basic video lectures...
    7 years ago by Physics Galaxy

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  243.  
    244. Sir how to calculate electric potential at an equatorial point of rod .. point might be anywhere ie for general case
    7 years ago by Deepanshu Chaudhary
    Ans 1 ->
    The calculation in this case at a general point for a finite length rod will be very complex and will not be needed for CBSE/JEE or any other competitive examination.... however we have discussed the same for axial and equatorial point which you can easily calculate...
    7 years ago by Physics Galaxy

    Post your answer here

     
  244.  
    245. sir when will you release a book based on electricity
    7 years ago by Venkat Vutukuri
    Ans 1 ->
    It is under press and may come by end of December 2017...
    7 years ago by Physics Galaxy
    Ans 2 ->
    It is under press and may come by end of December 2017...
    7 years ago by Physics Galaxy
    Ans 3 ->
    December 2016 / December 2017.
    7 years ago by AJAY GUPTA

    Post your answer here

     
  245.  
    246. where is the solution of quset
    7 years ago by shivam singh
    Ans 1 ->
    quesets solutions are not available as of now... when these will be released, we will inform our users via mail...
    7 years ago by Physics Galaxy

    Post your answer here

     
  246.  
    247. sir please reduce the gap between fundamental classes
    7 years ago by deepak kumar
    Ans 1 ->
    PleasesPlease sir..1 class perday
    7 years ago by Shubhit Talus
    Ans 2 ->
    We will try on this ....
    7 years ago by Physics Galaxy

    Post your answer here

     
  247.  
    248. good evening sir please would you upload lectures on partial differentiation
    7 years ago by Abhay verma
    Ans 1 ->
    Ok. Will do it in basic tools section...
    7 years ago by Physics Galaxy

    Post your answer here

     
  248.  
    249. sir would you mind uploading a separate section for physics practicals for class 11&12...
    7 years ago by Aman Jain
    Ans 1 ->
    Yes including physics practicals, we have many more things in pipeline but videos will be uploaded one by one gradually... right now uploading of NCERT Solutions are going on...
    7 years ago by Physics Galaxy

    Post your answer here

     
  249.  
    250. Hello Sir.Please Upload Units Dimensions and Errors for iit jee please .That will be helpful.
    7 years ago by Irshad Ahmed Khan
    Ans 1 ->
    Section of Measurements and Errors will be uploaded after NCERT Solutions will get completed...
    7 years ago by Physics Galaxy

    Post your answer here

     
  250.  
    251. sir currently I m studying in class 12...which book should I use to make my concepts clear and solve good problems...I m confused whether to use cengage or hc verma...plz guide me..
    7 years ago by Bharadwaj
    Ans 1 ->
    you can also use Physics Galaxy Books or both hcv and cengage are good... for JEE preparation...
    7 years ago by Physics Galaxy
    Ans 2 ->
    is BM sharma enough to get command on the topics ...as I m studying in 12th I feel that I have lack to time to revise the 11th portions so please suggest any one good book to make my basic concepts strong while solving
    7 years ago by BHARADWAJ SUBRAMANIAM
    Ans 3 ->
    do hcv also
    7 years ago by Ketan Patil

    Post your answer here

     
  251.  
    252. THANKS A TON SIR!! MAY GOD BLESS YOU
    7 years ago by shubham nayak

    Post your answer here

     
  252.  
    253. please upload video lecture for Electromagnetic waves in CBSE Syllabus
    7 years ago by Aloke Das

    Post your answer here

     
  253.  
    254. Sir I am an IIT aspirant for 2018.. have have been striving since day one in order to get good marks in Narayana CPT (IC Spark) but unfortunately I am not able to cross 50 out of 120 what should I do?
    7 years ago by Khan Ukkasha Farqaleet

    Post your answer here

     
  254.  
    255. Sir if I understand in concept video and advance illustration in any chapter then can I solve the problem in Practice Question of that chapter ?
    7 years ago by Aloke Das
    Ans 1 ->
    yes you can even i start praticisng after the conceptual lectures only
    7 years ago by rohit singh

    Post your answer here

     
  255.  
    256. Sir can I get important chapters for NEET phase2???
    7 years ago by Akankshya Roy
    Ans 1 ->
    All Chapters are important for NEET Phase 2 as it is including state level colleges also... its level should not be very high and they will ask questions distributed from all chapters... so if you are aspiring for good rank... do not leave any chapter of NCERT...
    7 years ago by Physics Galaxy

    Post your answer here

     
  256.  
    257. sir please can you upload vedio lecture of important experiment like vernier capplier too and please before 22 may(jee advance)
    7 years ago by AASHU GUPTA
    Ans 1 ->
    This will be done by July mid...
    7 years ago by Physics Galaxy

    Post your answer here

     
  257.  
    258. Is there any problem with PSET 1?
    7 years ago by Nachiketa Thakur
    Ans 1 ->
    can someone plz tell me about livestream classes????
    7 years ago by sahil dhar
    Ans 2 ->
    For academic session 2017, PG Livestream classes will start from June third week...
    7 years ago by Physics Galaxy
    Ans 3 ->
    How to find all classes?
    7 years ago by Sudarshana Ghosh

    Post your answer here

     
  258.  
    259. at 6:01 why did 4x^2 3x 7 were canceled by y ?
    7 years ago by Nachiketa Thakur

    Post your answer here

     
  259.  
    260. i thanks a lot to asheesh sir for giving this free open source learning site and a study material which we get in the expensive coaching institutes
    8 years ago by Devasheesh Sharma

    Post your answer here

     
  260.  
    261. I am in class 12. which can be the best book of physics with more and better numerical and theory for me?
    8 years ago by tarun agarwal
    Ans 1 ->
    .
    8 years ago by jeevan99
    Ans 2 ->
    If you are ambitous then H C Verma book concepts in Physics
    8 years ago by Suneel Dhariwal
    Ans 3 ->
    buy mtg interactive physics and see yourself even ie irodov will be child play.
    8 years ago by Ajay Sabarish
    Ans 4 ->
    mowaise
    7 years ago by jeevan99
    Ans 5 ->
    You can go with university physics..
    7 years ago by Shreyansh Singh Solanki
    Ans 6 ->
    Resnich halliday or hc verma
    7 years ago by Parikshit Sharma
    Ans 7 ->
    physics galaxy is best
    7 years ago by Sanat Kumar

    Post your answer here

     
  261.  
    262. how can we solve this if y=tan^3x then find y'
    8 years ago by rimpal jain
    Ans 1 ->
    THIS IS A WRONG NOTATION.AS IS NOT MENTIONED HERE.YOU HAVE JUST MENTIONED THE EXPONENTIAL VALUE
    8 years ago by PRANAV SINGHAL
    Ans 2 ->
    THIS IS A WRONG NOTATION AS ANGLE IS NOT MENTIONED.YOU HAVE JUST MENTIONED THE EXPONENTIAL VALUE.SORRY THE ABOVE ANSWER WAS NOT COMPLETE....
    8 years ago by PRANAV SINGHAL

    Post your answer here

     
  262.  
    263. in this video @3:11 can we open the brackets
    8 years ago by Samarth Mathur
    Ans 1 ->
    Hello i m sapn, test msg
    4 years ago by Sapna Agrawal

    Post your answer here

     
  263.  
    264. is everybody's submit button working in Qusets
    8 years ago by Samarth Mathur
    Ans 1 ->
    no.mine isnt working either
    8 years ago by Archana Sinha
    Ans 2 ->
    nope. even mine is'nt working
    8 years ago by jeevan99
    Ans 3 ->
    NOT WORKING
    8 years ago by PRANAV SINGHAL

    Post your answer here

     
  264.  
    265. submit button is not working for me as well(I'm using Google chrome)
    8 years ago by rimpal jain
    Ans 1 ->
    it is not working in both chrome and firefox
    8 years ago by Samarth Mathur
    Ans 2 ->
    yes...
    8 years ago by rimpal jain
    Ans 3 ->
    .
    8 years ago by jeevan99

    Post your answer here

     
  265.  
    266. What is this ''!''
    8 years ago by Khan Ukkasha Farqaleet

    Post your answer here

     
  266.  
    267. can anyone tell me why am i not able to attempt quset?the submit button aint working!! is it just me or everyone?
    8 years ago by Archana Sinha
    Ans 1 ->
    its only you....
    8 years ago by divyansh singh jadon
    Ans 2 ->
    how to fix it?
    8 years ago by Archana Sinha
    Ans 3 ->
    Are u using 'Internet Explorer'? If yes then u should use 'chrome'...
    8 years ago by Mohak Sharma
    Ans 4 ->
    im using chrome
    8 years ago by Archana Sinha
    Ans 5 ->
    .
    8 years ago by jeevan99

    Post your answer here

     
  267.  
    268. can anyone tell me about PG'S booster classes
    8 years ago by harshvardhan shukla
    Ans 1 ->
    .
    8 years ago by jeevan99

    Post your answer here

     
  268.  
    269. best teacher in the world.
    8 years ago by harshvardhan shukla
    Ans 1 ->
    .
    8 years ago by jeevan99

    Post your answer here

     
  269.  
    270. Sir I want to be a Physicist but my score in Physics is low i.e i am academically deficient i have board exam in 2 days & expecting to score 50 + / 70 CBSE but in this score & my over all score i will not get admission in BSc Physics ( hons. ) . But I feel Like i will get BTech in IP university Delhi . So I wanted advice should I Join BTech to carry on my love for physics ? If Yes Then Which Branch to join ?
    8 years ago by Ashish Sharma
    Ans 1 ->
    .
    8 years ago by jeevan99
    Ans 2 ->
    ilofa..
    7 years ago by jeevan99

    Post your answer here

     
  270.  
    271. Sir how can we differenciate pi*r^2*l with respect to volume. As in obtaining a relation between all the modulus of elasticity and poisson ratio.
    8 years ago by HRISHIKESH DEORE

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  271.  
    272. sir can i crack iit jeeby prepaing only in one year(12th class). unfortunately most of my 11th syllabus has missed..... sir plzzz tell me what strategy should i use to cover whole syllabus
    8 years ago by Noor Feroz
    Ans 1 ->
    difficult yet possible you must study 12-14 hrs a day
    8 years ago by Ajay Sabarish
    Ans 2 ->
    yes you can prepare but study daily and seriouslybe cool and calm
    8 years ago by Faizan Ali Saiyed
    Ans 3 ->
    Chill dude....drop one year after class 12 to prepare for iit....anyways there has been a change in the pattern this year ..so you'll probably take more time to get habituated to that...
    8 years ago by Kaustav Ghosh
    Ans 4 ->
    .
    8 years ago by jeevan99
    Ans 5 ->
    take a drop.... no worries..
    8 years ago by divyansh singh jadon

    Post your answer here

     
  272.  
    273. Sir Is there simple method to remember Trignometric value i.e: Sinx=Cosx etc
    8 years ago by Naveed Ul Hassan Awan
    Ans 1 ->
    Yes These values form a circle (Ie.they go about in a cyclic way) Sinx changes to cosx which changes to -sinx which changes to -cosx which changes to sinx (draw this as a circular flowchart it will help)
    7 years ago by Shivansh Chauhan

    Post your answer here

     
  273.  
    274. 1kg sugar will be more at equator or at poles
    8 years ago by tarun agarwal
    Ans 1 ->
    1 kg sugar will weigh more at poles because value of g is slightly more at pole than at equator but mass will be 1Kg everywhere
    8 years ago by Hanish Sharma
    Ans 2 ->
    g-rw^2 cos^2x gives the relation for the variation in g ...Thus Poles will be the answer to this question...100 % sure
    8 years ago by Kaustav Ghosh
    Ans 3 ->
    poles
    8 years ago by Sharan Vishnu

    Post your answer here

     
  274.  
    275. sir why there is no five level laser? why it could not be possible to construct two level laser?answer please
    8 years ago by Sisir Das

    Post your answer here

     
  275.  
    276. Where is Error Analysis ?
    8 years ago by Rajat Bhadoria
    Ans 1 ->
    Error Analysis is the way to analyze errors in measurement of physical quantities in different experiments as well as analyzing the error in final result outcome of experiment...
    8 years ago by Physics Galaxy

    Post your answer here

     
  276.  
    277. Sir I am medical student.. I found physics better after listening to ur videos.. Can I crack AIPMT just by studying ncert?
    8 years ago by Divya
    Ans 1 ->
    Study NCERT again and again and practice more number of problems and last year Aimpt questions... also go through the theory of HC VERMA
    8 years ago by Gurpreet Singh

    Post your answer here

     
  277.  
    278. how can download this lecture
    8 years ago by Kamal

    Post your answer here

     
  278.  
    279. Sir I am a JEE Mains & Advance 2017 aspirant. I give about 10-12 hours a day in studies yet I am unable to score good marks although I can solve the problems quite efficiently in Physics and Maths. Then where am I lagging behind?
    8 years ago by Rajdeep Datta Majumder
    Ans 1 ->
    Self study is must to crack any examination...study ncert and hcverma more carefully for physics and remember if u can solve questions of previous year jee then u r in the correct path
    8 years ago by Gurpreet Singh
    Ans 2 ->
    i study 3 hrs per day....Even its my case ... BUt dont get disheartened
    8 years ago by Charan Sai

    Post your answer here

     
  279.  
    280. can i clear iit chemistry by just solving ncert
    8 years ago by gaurav sarmah
    Ans 1 ->
    Not at all. Maybe mains you can clear but advance is too tricky to go just by relying on ncert and in ncert some concepts are not properly explained. I would suggest 'conceptual inorganic chemistry' by prabhat Kumar RC mukharjee for physical and Rk Gupta for organic. Don't expect too much from rk Gupta because it is not the fault of the book that the subject itself is haphazard. Until you complete whole organic chemistry you will not feel confident about solving any book. In physical if want really tough questions then try ranjeet shahi or n avasthi. Don't worry too much reactions in prabhat Kumar. For inorganic reactions just follow ncert because even if you learn all the reactions given in prabhat Kumar they(iit) can still give reactions for which you will be clueless and it's not worth the time you give just for 1 or Max 2 questions. The amount of reactions are enormous. At least there are 300.
    8 years ago by Rohan Jais
    Ans 2 ->
    Never buy Arihant books for chemistry.For physical chemistry RC Mukherjee for Organic Solomons and Frhyle (ms chauhan edited for jee version)-trust me it is the best book.For inorganic ncert is more than enough.
    8 years ago by Karan Singh
    Ans 3 ->
    also never buy books like op tandon rk gupta etc
    8 years ago by Karan Singh
    Ans 4 ->
    for iit chemistry buy books of dushyant kumar
    8 years ago by Abhisek Sahoo
    Ans 5 ->
    along with CD /PENDRIVE
    8 years ago by Abhisek Sahoo
    Ans 6 ->
    Physics
    7 years ago by AJAY GUPTA

    Post your answer here

     
  280.  
    281. sir are these concept videos enough for jee mains
    8 years ago by Faizan Ali Saiyed
    Ans 1 ->
    Forget Mains. Even for advanced!!!
    8 years ago by Mohak Sharma
    Ans 2 ->
    i am talking about basic videos not about advance illustrations
    8 years ago by Faizan Ali Saiyed
    Ans 3 ->
    yes basic videos are also of advanced level
    8 years ago by harshit
    Ans 4 ->
    basic videos with advance illustrations and solving each and every question of Qu set of physics galaxy would give you confidence to crack any exam
    8 years ago by Charan Sai

    Post your answer here

     
  281.  
    282. sir I want free online class for bio...is thier any site which can help me in study??
    8 years ago by akriti thakur
    Ans 1 ->
    khan academy
    8 years ago by jeevan99
    Ans 2 ->
    You are bio student ???
    8 years ago by akriti thakur
    Ans 3 ->
    Examfear
    8 years ago by Mohak Sharma
    Ans 4 ->
    Khan Academy the best ever I have seen
    7 years ago by Khan Ukkasha Farqaleet

    Post your answer here

     
  282.  
    283. Sir I think in 1st Ex that is taken by you there is a mistake in solution. Since answer is correct but we need to check for both +-r(under root b/a)
    8 years ago by Kumar Gaurav

    Post your answer here

     
  283.  
    284. How to download video lectures
    8 years ago by Jatin narang
    Ans 1 ->
    use en.savefrom.net
    7 years ago by Suyash Kant

    Post your answer here

     
  284.  
    285. why we consider dx^2 negligible and not 3dx
    8 years ago by johnsen
    Ans 1 ->
    because it dx^2 is in form of square and the 3dx is in not square form.
    8 years ago by adityatripathi
    Ans 2 ->
    Consider dx=.01...dx^2=.0001 while 3dx=0.03..Thus as we square a term it gets smaller..
    8 years ago by Manav Patel
    Ans 3 ->
    Thank-you
    7 years ago by Shivansh Chauhan

    Post your answer here

     
  285.  
    286. .
    8 years ago by jeevan99
    Ans 1 ->
    by mistake posted that.
    8 years ago by jeevan99

    Post your answer here

     
  286.  
    287. is there any career option other than engineering for non medical students..i got 93% in 12th examination..n now i feel bored studying evrything again..so i want suggestion for successful career options....plz do help.... :)
    8 years ago by Khushboo Jain
    Ans 1 ->
    Yes there are a lot u can go for basic science management etc etc
    8 years ago by Mostafijur Rahaman
    Ans 2 ->
    bt i dont like bsc....i want to do something cool in lyf...like animation photography etc bt i dont know if it has any scope in india.....
    8 years ago by Khushboo Jain
    Ans 3 ->
    no there is no scope in india of animations you shuold go abroad
    8 years ago by divyansh singh jadon
    Ans 4 ->
    and how did you prepare for ur boards exam///?// im also in 12
    8 years ago by divyansh singh jadon
    Ans 5 ->
    nothing special....i put my best in my regular classes..n did the daily work on time...and finally got the success..... :)
    8 years ago by Khushboo Jain
    Ans 6 ->
    I think u should do ur graduation in any stream u like then prepair for cds exam
    8 years ago by Utkarsh Shukla
    Ans 7 ->
    Cds is combined defence services for army navy n airforce officers . My own sister is serving in army n she got through cds only
    8 years ago by Utkarsh Shukla
    Ans 8 ->
    .
    8 years ago by jeevan99

    Post your answer here

     
  287.  
    288. can we make notes from these video lectures ???
    8 years ago by Shahid Khan
    Ans 1 ->
    yes
    8 years ago by Abhishek Rawat
    Ans 2 ->
    Owkooos
    8 years ago by akriti thakur
    Ans 3 ->
    yes..dude of course..
    8 years ago by pallavi nanda
    Ans 4 ->
    Yes you should
    8 years ago by Kumar Gaurav
    Ans 5 ->
    .
    8 years ago by jeevan99
    Ans 6 ->
    of course
    7 years ago by Khan Ukkasha Farqaleet
    Ans 7 ->
    5 minutes of silence for this epic question :p
    6 years ago by Aaryan Dewan

    Post your answer here

     
  288.  
    289. what is gravitor particle ?
    8 years ago by Debjit Dutta

    Post your answer here

     
  289.  
    290. how to derive dy/dx for trignometic functions
    8 years ago by Sutha Jothi V
    Ans 1 ->
    there are certain formulaes for that
    8 years ago by divyansh singh jadon
    Ans 2 ->
    Hello Sutha here's the answer for that Not only for sin function for any function you can find derivative by using first principle of derivative.You first go through some videos and examples on first principle of derivative on youtub.If you still dont get it you can ask and i'll explain it in my words
    8 years ago by Krishna Mohan
    Ans 3 ->
    hi
    8 years ago by Kunal Garg
    Ans 4 ->
    .
    8 years ago by jeevan99

    Post your answer here

     
  290.  
    291. Did Magnetic Force follow Newton's law?
    8 years ago by apoorv agrawal
    Ans 1 ->
    Yes apoorv all forces(magnetic frictional electromagnetic electrical gravitational etc follows Newtons law except for relativistic mechanics there some of the newton laws may reach their limit so it's an exception but as far as your concerned about JEE u can say all forces follow Newtons law's
    8 years ago by Krishna Mohan
    Ans 2 ->
    no newton`s third fails in electromagnetism.... but conservation of momentum is applicable everywhere.
    8 years ago by harshit
    Ans 3 ->
    .
    8 years ago by jeevan99

    Post your answer here

     
  291.  
    292. sir, can you just tell me about websites which have free video lectures on topics of chemistry and maths of class 11.
    8 years ago by Aditya Gupta

    Post your answer here

     
  292.  
    293. sir do u know any chemistry onl9 site which provides free videos as this site does? plz reply as soon as possible...
    8 years ago by Khushboo Jain
    Ans 1 ->
    what for exactly u preparing
    8 years ago by vedant patil
    Ans 2 ->
    For iit
    8 years ago by Ritik Dhinwa
    Ans 3 ->
    https://www.youtube.com/user/GabbarSinghTutorials/playlists
    8 years ago by SURYANSH SHRIVASTAVA
    Ans 4 ->
    but brother his vdo lectures are best only for 12 board exams not for jee.
    8 years ago by harshvardhan shukla
    Ans 5 ->
    This will help clear the basics and further self studies will do the rest...
    8 years ago by SURYANSH SHRIVASTAVA
    Ans 6 ->
    is there anyone for maths except mathmanthan.
    8 years ago by harshvardhan shukla
    Ans 7 ->
    sir i m preparing for jee...sir i want someone who can expalin as clearly as this site explains for jee...i need a lot .plz reply soon
    8 years ago by Khushboo Jain
    Ans 8 ->
    i think u can try rao iit's video lectures for chemistry
    8 years ago by vedant patil
    Ans 9 ->
    https://www.youtube.com/user/Vishwanathchemistry/videos
    8 years ago by Prateek Kumawat
    Ans 10 ->
    you should try pace iit nd medical on youtube.
    8 years ago by LAIBA NOOR
    Ans 11 ->
    Best online jee chemistry by khanacadmy.org. this site is best best for organic chemistry. Or u can search it on youtube also...
    8 years ago by nitish mathur
    Ans 12 ->
    try lectures of mohit tyagi
    8 years ago by Kumar Jain
    Ans 13 ->
    chemtube3d by university of liverpool for organic
    8 years ago by jeevan99
    Ans 14 ->
    Go with Mlearning
    8 years ago by Kumar Gaurav
    Ans 15 ->
    .
    8 years ago by jeevan99

    Post your answer here

     
  293.  
    294. is calcus used for us at dailylife?
    8 years ago by Srilikhitha Mulka
    Ans 1 ->
    calculus is used by our brain in everyday life. it uses to understand the distance of a vehicle approaching us while crossing the road.It creates a mathematical model and solve the model using calculus to obtain the distance travelled by the vehicle in a given time allowing us to make a decision as whether to cross the road or not
    8 years ago by Rathankar Rao
    Ans 2 ->
    @ rathankar rao -how could u decipher the secrets of brain.u cant say anything about our brains.now u will say that uor brain also applies trignometrical formulas to simplify trignometric funtions.bro calculus is defined by us and also used by us.but when it comes to brain's involuntary activities its unknown to us that how it does that.even a child can knows when to cross the road and when to not so his brain also do calculus but he had not learned it yet.then how?
    8 years ago by AKASH SHARMA
    Ans 3 ->
    and also by this hypothesis albert einstein would have been a pro at all games but he was not.
    8 years ago by AKASH SHARMA
    Ans 4 ->
    Yes
    8 years ago by Kumar Gaurav

    Post your answer here

     
  294.  
    295. Semiconductors
    8 years ago by Shaleen Maheshwari
    Ans 1 ->
    Semiconductors are the foundation of modern electronics. Semiconducting materials exist in two types - elemental materials and compound materials. The modern understanding of the properties of a semiconductor relies on quantum physics to explain the movement of electrons and holes in a crystal lattice.
    8 years ago by Gaurav Chauahn

    Post your answer here

     
  295.  
    296. How EMF is generated by time varying Magnetic Field in a NON-CONDUCTING ring? Is it the actual EMF through which current can be flown?
    8 years ago by apoorv agrawal
    Ans 1 ->
    The magnetic flux through a filamentary loop is changing with time. This flux change induces an emf.emf is induced by a changing magnetic flux. If nothing changes the induced emf is zero.
    8 years ago by Kushagra Misra
    Ans 2 ->
    induced emf is produced in every object which is undergoing change in magnetic flux linked to it. However if the object is non conducting induced current will not flow through the object
    8 years ago by Aditi Gupta

    Post your answer here

     
  296.  
    297. can electric field lines form closed loop?
    8 years ago by apoorv agrawal
    Ans 1 ->
    no
    8 years ago by Mohammad Akram
    Ans 2 ->
    yes time varying magnetic fields will produce elctric lines of force in the form of closed loops .
    8 years ago by sesha sai
    Ans 3 ->
    Yes they can.TVMF produces induced electric fields (non-conservative) whose lines form closed loops
    8 years ago by Joydeep Mukherjee
    Ans 4 ->
    yes they can if magnetic field is time varying
    8 years ago by yash gupta

    Post your answer here

     
  297.  
    298. Does this second derivative check method apply to implicit functions?
    8 years ago by Yash Selot

    Post your answer here

     
  298.  
    299. How do we find d^y/dx^?
    8 years ago by Yash Selot

    Post your answer here

     
  299.  
    300. at an angle theta
    8 years ago by bhavyam bhargava
    Ans 1 ->
    ??
    8 years ago by Kumar Gaurav

    Post your answer here

     
  300.  
    301. WY AT MAXIMA AND MINIMA dy/dx is zero
    8 years ago by bhavyam bhargava
    Ans 1 ->
    dy/dx=tan$ and since $=0 [$ =0 coz tangent at maxima minima is parallel to x axis} dy/dx=0
    8 years ago by Meghansh Punjabi
    Ans 2 ->
    if you observe any graph except at end points you can easily observe at the point of maxima or minima graph is concave down /concave up ,for example take sin(x), the tangent is parallel to x axis , that shows that angle made by tangent with x axis i.e. inclination angle is zero , its simply shows that dy/dx is zero.
    8 years ago by Gaurav Bhatt

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  301.  
    302. The needle of the dip circle reads 45° if it is inclined at
    8 years ago by SHREYANSH JAIN

    Post your answer here

     
  302.  
    303. If switch is open in a circuit then does the electrons in clockwise direction????? Is their any reason for it???
    8 years ago by prishita

    Post your answer here

     
  303.  
    304. a steady current passes through a cylindrical conductor.is there an electric field inside the conductor?
    8 years ago by neeraj sharma
    Ans 1 ->
    No. Field inside conductor is zero .charges always lies on surface of conductor
    8 years ago by vivek madhukar gawate
    Ans 2 ->
    Vivek u r wrong i guess.Electric field inside a conductor is zero onli under electrostatic conditions
    8 years ago by Bharath Ram
    Ans 3 ->
    there will be an electric field in the direction of current
    8 years ago by Mrinal kanti mahato
    Ans 4 ->
    I fully agree with bharath electric field inside conductor is present.
    8 years ago by Piyush Bharti

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  304.  
    305. :PLZ GIVE ME APPLICATION ON ELECTRIC FLUX
    8 years ago by Jyoti.B.Gadhvi
    Ans 1 ->
    It is used to find out no. Of electric field lines passing through the specific area and it is also states the gauss law
    8 years ago by yash gupta
    Ans 2 ->
    if u mean real life applications; electric flux combined with magnetic properties, makes electromagnetic waves, which is indeed a very useful concept in today's day.
    8 years ago by ANURAG KAUSHIK

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  305.  
    306. sec x +tan x divided by sec x -tan x by quotient rule ??
    8 years ago by Hritwik Pareek
    Ans 1 ->
    (secx+tanx)^2
    8 years ago by Vikas Rana

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  306.  
    307. In one question in the video the solution to sinx + tanx has been given as cosx + secx. But is it the final answer or can we further simplify cosx+secx?
    8 years ago by Ritwik Jha
    Ans 1 ->
    sinx.tanx
    8 years ago by Vikas Rana

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  307.  
    308. sir,practice Assignment section is not working properly. when i click on 'next question' nothing happen.
    8 years ago by rahul tiwari

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  308.  
    309. is there any weay to sheild any object from magnetic field?
    8 years ago by ashish yadav
    Ans 1 ->
    shielding by superconducting foil.... as magnetic field cannot penetrate a superconductor...
    8 years ago by Physics Galaxy

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  309.  
    310. has that d2y/dx2=6 come by differentiating 6x+5 ?
    9 years ago by Neelesh Jain
    Ans 1 ->
    Second derivative or the second order derivative of a function f is the derivative of the derivative of f
    8 years ago by Bibek Kumar Agrawal
    Ans 2 ->
    answer will be zero
    8 years ago by bhavyam bhargava
    Ans 3 ->
    Answer will be zero because,derivative of 6 is zero
    6 years ago by Vallakatla Sai chandra

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  310.  
    311. during differentiation of implicit function when we differentiate y terms why we write dy/dx
    9 years ago by Shubham Kashyap
    Ans 1 ->
    because we are differentiating with respect to x... if you differentiate it with respect to y then it will be dy/dy so no need to write anything it becomes 1
    9 years ago by Physics Galaxy

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  311.  
    312. Is field lines superimpose with each other?
    9 years ago by BISWADEEP CHAKRABORTY
    Ans 1 ->
    Field lines represent the net field after superposition so no point to talk about superposition of field lines... pl post queries under relevant section of the forum...
    9 years ago by Physics Galaxy

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  312.  
    313. Is electric field lines overlap with each other? Explain.
    9 years ago by BISWADEEP CHAKRABORTY
    Ans 1 ->
    no they never as electric field lines are curve in nature and a curve cannot have two tangents at a time.
    9 years ago by HARIEHARRAN
    Ans 2 ->
    Pl ask queries in relevant topics under 'discussion forum' click on the interact tab on home page for this...
    9 years ago by Physics Galaxy
    Ans 3 ->
    no they do not overlap as the tangent to a elecric field line gives the directin of magnetic field and there cannot be two directions at one place.
    8 years ago by Pranav Jhawar
    Ans 4 ->
    If there are two tangent at a point then both will show different direction which is not possible
    8 years ago by Rahul kumar jaiswal

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  313.  
    314. what is banking of road derive it
    9 years ago by chesta soni
    Ans 1 ->
    Pl see the Illustration http://physicsgalaxy.com/illustration/1/10/2860/Maximum%20Speed%20Limit%20on%20Banked%20Road
    9 years ago by Physics Galaxy

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  314.  
    315. what is drift current ??
    9 years ago by arnav aggarwal

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  315.  
    316. Sir if the width of the slit in diffraction is increased why does the intensity falls?
    9 years ago by kunal B Mehta

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  316.  
    317. Dear Sir Please update plan to release text book solution og Galaxy Physics Vol1 and Vol 2. I had heared about it few weeks back.
    9 years ago by manish vohra

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  317.  
    318. WHAT IS THE SURFACE TENSION OF LIQUID AT ITS CRITICAL TEMPERATURE
    9 years ago by ROSHAN
    Ans 1 ->
    As the temperature of a liquid increases its surface tension decreases and tends to zero at a specific temperature called critical temperature of that liquid.
    9 years ago by Vaibhav

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  318.  
    319. velocity at A and at B is given then how to find velocity in the mid point of AB
    9 years ago by ROSHAN
    Ans 1 ->
    finding the acceleration which is constant and the use for midpoint distance or directly use the formula underoot v^2 + u^2/2.
    9 years ago by ROSHAN

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  319.  
    320. Q no 3 assignment 1 question of rigid body dynamics explanation of solution?
    9 years ago by Suvrath hegde

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  320.  
    321. Sir please upload some more illustrations on SHM.
    9 years ago by Vaibhav
    Ans 1 ->
    being uploaded... will start soon.
    9 years ago by Physics Galaxy

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  321.  
    322. Sir,,, I need hints For AASSIGNMENTS
    9 years ago by lalabhai
    Ans 1 ->
    Right now hints for Assignments are not available but you will be informed when activated.
    9 years ago by Physics Galaxy

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  322.  
    323. my question is that why does a body attains terminal velocity?
    9 years ago by Anoushka Prajapati
    Ans 1 ->
    A body attains terminal Velocity when the net opposition force on it becomes equal to its driving force.... Mostly in cases when opposing or friction force increases with speed of body and when it becomes equal to accelerating force... body attains the final constant speed called terminal velocity...
    9 years ago by Physics Galaxy

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  323.  
    324. Sir, how to solve problems of variable mass system applied in rotational motion? For eg, the whistle bursted in diwali rotates as well as loses mass, how to calculate its rate of change of angular parameters or more?
    9 years ago by Harshit Rawat
    Ans 1 ->
    Such problems can be handled in the similar way we handle probs of variable mass in linear motion... by applying impulse momentum equation or conservation of momentum at an intermediate time t and t + dt... similarly in rotational motion we use angular momentum conservation or angular impulse at t and t+dt...
    9 years ago by Physics Galaxy

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  324.  
    325. SIR, ONCE YOU TOLD US THAT ENERGY CAN BE DEFINED AS 'THE ABILITY TO APPLY FORCE'. SO SIR, CAN WE SAY THAT EARTH HAS INFINITE ENERGY (BECAUSE EARTH ATTRACTS EVERYTHING IN OUR SURROUNDINGS)?
    9 years ago by Puneet Sarraf
    Ans 1 ->
    NO... Earth can exert force means it has energy and when the force does some work the energy transformed to other forms only... magnitude of energy is not directly related to the force a system can exert... in case of conservative forces we can use F = -(dU/dr)...
    9 years ago by Physics Galaxy

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  325.  
    326. Two trains A and B of length 400 m each are moving on two parallel tracks with a uniform speed of 72 km/h in the same direction with A ahead of B . the driver of B decides to overtake A and accelerates by 1 m/s^2 . if after 50 s , the guard of B brushes past the driver of A ,what was the original distance between them .
    9 years ago by devang

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  326.  
    327. A car is accelerating with acceleration = 20 m/s2. A box of mass 10 kg is placed inside the car is in contact with the vertical wall. The friction coefficient between the box and the wall is µ = 0.6 and take g = 10 m/s2 Options 1. The acceleration of the box will be 20 m/s2 2. The friction force acting on the box will be 100 N 3. The contact force between the vertical wall and the box will be 100 root5. 4. The net contact force between the vertical wall and the box is only electromagnetic in nature I know that the first two options are true since limiting frictional force on the box (120 N) is greater than the gravitational force (100 N). Also contact force is 200 N, so third option is false. What is the answer to the fourth option ? Is it true or false ? If it is false, what is the nature of other contact forces ?
    9 years ago by Tushi Phul

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  327.  
    328. Sir can we apply the product rule for differentiation after applying the chain rule for differentiation because we get a value in product form after applying chain rule for differentiation?
    9 years ago by Yash Selot
    Ans 1 ->
    Whenever you differentiate anything which has product of two functions...we use product rule whether it is directly differentiated or it comes under chain rule but if there is a function in function then we use chain rule only... If there are two functions in product form in which one is of type fif then we use product rule first and for fif differentiation we use chain rule..
    9 years ago by Physics Galaxy

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  328.  
    329. QNo. 1. Q.An open rectangular tank 1.5 m wide and 2m long is half filled with water . It is accelerated horizontally at 3.27 m/s sq. in the directon of its legth. determine the depth of water at each end of tank.
    9 years ago by rajat puri
    Ans 1 ->
    You are asking a que of fluid under calculus video.. Pl post it under appropriate topic in forum
    9 years ago by Physics Galaxy
    Ans 2 ->
    surface will make angle tan-1(3) with base and 0.37 m3 of water will come out and futher 0.84m of base will be empty
    9 years ago by chandan kumar

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  329.  
    330. Sir i think there is a little mistake in the last question where you took 2 common in the eqn. 2x2 + +6x - 36 = 0. But the error does not affect the answer but the solution of the eqn. will be x=3,-6. If we have to find the min value of the triangle your son. of the eqn. will be wrong.
    9 years ago by Kunal Raj Kiran
    Ans 1 ->
    sir you have done a little mistake in triangle question instead of -12 it should be -18
    8 years ago by Abhishek Gupta
    Ans 2 ->
    Sir I think in 1st Ex that is taken by you there is a mistake in solution. Since answer is correct but we need to check for both +-r(under root b/a)
    8 years ago by Kumar Gaurav

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  330.  
    331. We use dy/dx to find which physical quantity and what are the applications of that physical quantity?
    9 years ago by Yash Selot
    Ans 1 ->
    dy/dx gives the rate at which variable y changes with variation of x... In physics there are many applications of derivatives like velocity =dx/dt and acceleration = dv/dt and force = dp/dt and many more...
    9 years ago by Physics Galaxy

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  331.  
    332. for algebric functions we we can solve these problems without apllying these rules like if y=5x+3 find dy/dx the we solved it as y+dy/dx=5(x+dx)+3 =>by putting the value of y we get dy=5dx hence the value of dy/dx is 5 can we do the same in these trignometric functions?????
    9 years ago by naman tiwari
    Ans 1 ->
    Yes you can solve, this is called differentiation by first principle.. but it becomes too lengthy thats why we use direct results...
    9 years ago by Physics Galaxy
    Ans 2 ->
    Sir Is there simple method to remember Trignometric value i.e: Sinx=Cosx etc
    8 years ago by Naveed Ul Hassan Awan

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  332.  
    333. if there is no external torque acting on planets in space, why do they revolve
    9 years ago by gaurang kaushik
    Ans 1 ->
    They revolve due to the angular impulse gained by all planets when universe was created... As initially no external torque was present (if we assume) then today net angular momentum of universe is zero...
    9 years ago by Physics Galaxy

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  333.  
    334. a capillary tube is dipped in water vertically. it is sufficiently long so that water rises to max height 10 cm in the tube .The length of the tube inside the water is 25 cms .The lower end of the tube is closed and the tube is taken out and opened again.What length of the water will be remaining in the tube ?
    9 years ago by ramesh nagda
    Ans 1 ->
    50cm as water is held by force of surface tension acting at meniscus and at the bottom... so force becomes twice which can hold double length of column... whereas when tube is dipped... force is only at the meniscus so half length can be held.
    9 years ago by Physics Galaxy

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  334.  
    335. in calculating centre of mass of solid hemisphere,while we are considering an elemental disc of mass dm then its distance from origin should not be simply y rather centre of mass of disc which is it should be 4y/3*pi. like u did in case of calculating centre of mas of disc with help of elemental ring, you used y coordinate as 2y/pi.
    9 years ago by MD.YASIR FEROZ KHAN
    Ans 1 ->
    Prob in forum under appropriate topic...
    9 years ago by Physics Galaxy
    Ans 2 ->
    That was a half ring/half disc...For the calculation of centre of mass of solid hemisphere, a full disc is used as element, the centre of mass of which will be at it's symmetry.
    9 years ago by Avnip Kapur

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  335.  
    336. can nothing escape from a black hole ? why ?
    9 years ago by vivek jaiswal
    Ans 1 ->
    Due to very high gravity...
    9 years ago by ankita jaiseal

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  336.  
    337. y=3/(x^6) why cant we write it in this way dy/dx=3/(6x^5)
    9 years ago by tanuj kasal
    Ans 1 ->
    you are violating the rules of differentiation... its for x^n not for 1/x^n to be applied only in denominator...
    9 years ago by Physics Galaxy

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  337.  
    338. I didnt understand ex:3 that x power 5/4
    9 years ago by Rajdeep Mukherjee
    Ans 1 ->
    In this example 5/4 will come in front of x and according to formula the power left on x will be n-1 that means 5/4-1= 1/4 so x will have the power1/4 left on it.Hope the answer will help you.
    9 years ago by Garima Badsra

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  338.  
    339. A vessel contains a liquid with the density variable and pressure at depth is given by P=d0/9(1+y/a)gy in which a cube of side a is immeresed such that its top surface is in touch with the free surface of the liquid is released. A) The maximum depth to which cube will move,before coming to rest B) The maximum velocity attained by cube during motion is B) What is maximum velocity attained the block before coming to rest
    9 years ago by Suresh kumar

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  339.  
    340. electric potential and capacitance (chapter)
    10 years ago by Aryan Sharma
    Ans 1 ->
    electric potential at a point is the work done by a charge to bring a unit positive charge from infinity to that point..........................capacitance is the measure of ability of a conductor to store the charge....
    9 years ago by Shreejeet Sahay
    Ans 2 ->
    Go here- www.beiitian.tk
    9 years ago by Abdullah Jafar

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  340.  
    341. what is the difference between low current and high current.... in reference with transformers... and what happens to electrons when they constitute low current even when high voltage is applied across them...
    10 years ago by Ocean Balodiya

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  341.  
    342. what is melde's experiment
    10 years ago by parth tandon
    Ans 1 ->
    In video lectures pl open the section of stataionary waves and click on Melde's experiment to understand it...
    9 years ago by Physics Galaxy

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