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

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  1.  
    2. Great
    1 weeks ago by

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  2.  
    3. good
    11 months ago by

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  3.  
    4. sir please make us visualize better in this series of videos of finding area and volume using integration ( especially volume)
    1 years ago by

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  4.  
    5. Ghuj
    2 years ago by

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  5.  
    6. if we have asked the value of integrated equation then what we have to put the value of constant
    2 years ago by

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  6.  
    7. sir could u please share solution of integrate i/x^2 .e^1/x dx using e^1/x =t
    2 years ago by Rahul Manjunath Harlapur

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  7.  
    8. Where is the YouTube link of all these videos? Could you please give that?
    2 years ago by
    Ans 1 ->
    search physics galaxy and go to playlists
    2 years ago by

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  8.  
    9. sir, from where can we get the solutions to QSETS
    3 years ago by

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  9.  
    10. please introduce 1.5x and 2x speed here too
    3 years ago by Parth Shrivastava
    Ans 1 ->
    you can use youtube enhancer on chrome that'll be very helpful
    3 years ago by Abhijeet kumar

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  10.  
    11. thank you sir
    3 years ago by sikharam srinidhi

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  11.  
    12. please! suggest a chemistry website too.
    3 years ago by

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  12.  
    13. THE TITLE OF THE VIDEO IS GIVEN AS "VOLUME OF SPHERE" , BUT EXPLAINED ONLY ABOUT "SURFACE AREA OF THE SPHERE"
    3 years ago by

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  13.  
    14. How is r=Rcos(theta)?
    3 years ago by RUDRAKSH SINGHAL

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  14.  
    15. in the video integration by substitution at 9 . 30 e to the power 4x became t ......... how?
    3 years ago by

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  15.  
    16. sir why did u integrate cos2x as sin2x/2 and not sin2x?
    4 years ago by Aryan Khurana

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  16.  
    17. Sir what is the significance of ln u written again and again during your lectures
    5 years ago by Ravikesharwani4078@gmail.com

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  17.  
    18. very helpful videos Sir, just a suggestion : When we pause the video a box appears containing more videos which block the view from the Question / Video which is not needed.
    5 years ago by Aaniranjan Saraf

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  18.  
    19. when i was trying to find moment of inertia of solid sphere i took elemental disk where as you took elemental hollow sphere of widhth dx at distance x ...... my answer was wrong..... someone kindly inform me where iam wrong
    5 years ago by Raj Rachit

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  19.  
    20. is it necessary to take elemental in the middle of the rectangle ?
    5 years ago by Mohammad Saqib Masood
    Ans 1 ->
    No
    2 years ago by

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  20.  
    21. Very good teaching method!
    5 years ago by Durvesh Rajan Dambe

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  21.  
    22. Sir Why did you take R² as a constant and did not integrate it
    5 years ago by Tanmay Goyal
    Ans 1 ->
    actually R is the radius of sphere which is constant for it.... It can not change
    4 years ago by aman raj

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  22.  
    23. Sir if I take t=tanx dt=sec²xdx Therefore now reduces to sec4xtanxdx = (t t³)ft Integrating it becomes t²/2 t4/4 Which after calculating comes out as sec4x/4-1/4 C So why I am getting this extra term of -1/4
    5 years ago by Tanmay Goyal

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  23.  
    24. Sor can the Integration of cos²x be written as cos³x/3
    5 years ago by Tanmay Goyal

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  24.  
    25. Sir can the Integration of cos²x be written as cos³x/3
    5 years ago by Tanmay Goyal

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  25.  
    26. Is there any other method of solving the last example I took t=cosx And got cos4/4-cos^6/6=sin³/3-sin^5/5
    5 years ago by Tanmay Goyal

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  26.  
    27. sir why r=Rcos(theta)
    5 years ago by Darshan Tailor

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  27.  
    28. what is diffrentiation of e^1/x?
    6 years ago by Krishna Gupta
    Ans 1 ->
    -e^1/x/x^2
    6 years ago by abha sachan

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  28.  
    29. sir please give quset answers
    6 years ago by sai durga harsha vardhan

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  29.  
    30. Sir, how to improve our efficiency in doing integration?
    6 years ago by GEETA SNEHA

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  30.  
    31. Sir I think that instead of ln cosx there must be ln |cosx | as cos x can't be negative.
    6 years ago by SSK

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  31.  
    32. sir I think r=Rcos([theta] d[theta])
    6 years ago by SSK

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  32.  
    33. sir why are we doing this as sphere is homogeneous so we all know the direct formula and its area is not varying with radius so what is the need for integration
    7 years ago by sagar

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  33.  
    34. sir why we need to calculate surface area of sphere by integration we know its direct formula then where it will be needed
    7 years ago by sagar

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  34.  
    35. sir how can we get solutions of qset.pls also help us with it.it will be really kind of u.
    7 years ago by SAJAL GUPTA
    Ans 1 ->
    Why you are posting a general query below a calculus video... it is distracting other viewers... goto INTERACT tab and post it under general query...
    7 years ago by Physics Galaxy

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  35.  
    36. Sir i did this by considering elemental spherical shells of thickness dr (Intg of)4pr^2 dr
    7 years ago by Divya r
    Ans 1 ->
    Yes it can also be done... good.
    7 years ago by Physics Galaxy

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  36.  
    37. SIR SUBMIT BUTTON IN QUESTION SET IS NOT WORKING !!
    8 years ago by PRANAV SINGHAL

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  37.  
    38. can we calculate this using d? as we did for surface area?
    8 years ago by vector addition

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  38.  
    39. Why is the width of the elemental ring is considered to be Rd*theta?
    8 years ago by Yash Selot
    Ans 1 ->
    by taking the elements of theta = arc / radius
    8 years ago by ANURAG KAUSHIK

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  39.  
    40. Sir why the 'a' has to be cancelled out in the video?
    8 years ago by Yash Selot
    Ans 1 ->
    When the function will be differentiated chain rule will be used so a will be in multilication. if a was not cancelled out integrant would be a(ax b)^n
    7 years ago by Madhu Sharma

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  40.  
    41. Sir why did you took cos^3 x as (1-t^2)dt?
    8 years ago by Yash Selot
    Ans 1 ->
    dt=cosxdx, and cos^3x can be written as cos^2x.cosx. so cosx was consumed by dt and cos^2x can be wriiten as (1-sin^2x). t is equal to sin x so the value of sin^2x will be t^2. so cos^2x became (1-t^2). thats how cos^3x became (1-t^2)dt
    6 years ago by Rudransh Tyagi

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  41.  
    42. How to integrate the functions which have been differentiated of the form of whole squares?
    8 years ago by Yash Selot

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  42.  
    43. Why do we put integers above and below the sign of integration ?
    8 years ago by Yash Selot

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  43.  
    44. sir how can we integrate xsinx^2 dx
    8 years ago by Naman Yadav
    Ans 1 ->
    ?[12x-12xcos(2x)]dx = ?12xdx-?12xcos(2x)dx
    7 years ago by Madhu Sharma
    Ans 2 ->
    -2cosx
    6 years ago by Subham Tiwari

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  44.  
    45. why 'r' can be written as Rcos-theta?
    9 years ago by Neelesh Jain

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  45.  
    46. Sir how to integrate _/(x/(R-x))^(1/2) dx with upper limit R and lower limit 0.... ans is (pi*R)/2.....please help.
    9 years ago by Mohak Sharma
    Ans 1 ->
    Substitute x = Rsin^2(theta) and solve it... you will get the ans..
    9 years ago by Physics Galaxy

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  46.  
    47. Sir during the integration of dy the sign of integration will nullify the effect of differentiation of dy and we will be left with y. So when we integrated the product of f'(x) and dx why did we got the result as f(x)+c and why not we got f(x) * x as the sign of integration will nullify the effect of d?
    9 years ago by Yash Selot
    Ans 1 ->
    if we integrate d{f(x).x} then we get f(x).x here you are integrating f(x).dx which is the value of dy and as integration of dy is resulting y so on the right hand side also value of y should be there to hold equality which is f(x)....
    9 years ago by Physics Galaxy

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  47.  
    48. Find The Integration Of (exp)^2 w.r.t. x ?
    9 years ago by Amit Kumar Meena

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  48.  
    49. integration of xsin(2x^2)
    9 years ago by Tanmay Motiwale

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