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

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  1.  
    2. No
    4 months ago by

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  2.  
    3. your teaching method is full fill with desires and we all students easily understood thank you sir
    5 months ago by ujjwal yadav

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  3.  
    4. Tq sir
    2 years ago by

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  4.  
    5. How to switch to global accent
    2 years ago by

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  5.  
    6. Sir we know that at extreme position particle has minimum velocity which is zero, so sir if we consider velocity Amplitude of a particle is the velocity of the particle in its extreme position then sir it might be zero . So sir please explain my point
    3 years ago by

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  6.  
    7. Sir ,,is it not that given equation is a wave but not simple harmonic wave ....becoz particles at any given/fixed position are not performing shm
    4 years ago by

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  7.  
    8. omg u make the concepts very easy to grasp ...now i knew why aman bansal,, kunal and many more scored highest in physcs,,
    5 years ago by Sarju Panchal

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  8.  
    9. Sir,will momentum transfer also take place in mechanical waves?
    5 years ago by SRI RISHITHA
    Ans 1 ->
    momentum takes place only in mechanical waves.not in em waves as there would be no involvement of matter[mass]
    5 years ago by E R V Jyothiraditya

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  9.  
    10. Sir the difference in the theta values theta 1 and theta 2 was very small but why we considered theta 1 and theta 2 to be very small as well ??
    5 years ago by Yash Sharma

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  10.  
    11. can we get any study material
    6 years ago by Dara Adithya
    Ans 1 ->
    fiitjee complete 2 year study material with aits papers (fresh copy)just for 2000/ ............contact-7773027420
    6 years ago by chayan gurele

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  11.  
    12. sir why the curve has eqn y=f(x-vt)?
    6 years ago by Balaji Anandhan

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  12.  
    13. Sir where is comparison between kinetic energy and potential energy of a wave?
    6 years ago by anita singh

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  13.  
    14. Why is phase difference w[?÷v]?
    6 years ago by Raghav Ajitsaria

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  14.  
    15. Sir you said that there is no effect of pressure on the sound of air as if we increase the pressure, the density will decrease and the ratio will remain constant. By the same logic, can't we say that at in moist air, as the density decreases, the pressure will increase to maintain the ratio having no effect on the velocity of sound?
    6 years ago by Kishore Sathia

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  15.  
    16. will someone tell me when are we getting the advanced section of physics galaxy ??????
    7 years ago by Pradyumna Gupta
    Ans 1 ->
    download physics galaxy app
    4 years ago by Daily whatsapp status

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  16.  
    17. Sir I cannot understand why the second curve has a equation y=f(x-vt)?
    7 years ago by Akshunn Trivedi

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  17.  
    18. sir so for a wave front also can wave intensity be defined?
    7 years ago by sujith kumar

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  18.  
    19. A/q to the question i think it is increased by 100 value not by 100 times??
    8 years ago by VAIBHAV GUPTA

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  19.  
    20. but how can we consider the tension to be 48 N through out the string as the string is not mass less
    8 years ago by Pkumar Sinha
    Ans 1 ->
    Here mass of string is negligible compared to tension so it can be considered almost uniform...
    8 years ago by Physics Galaxy

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  20.  
    21. If the frequency of a wave is increased by 25% then the change in its wave length is (a) 20% increase (b) 25 % increase (c) 20% decrease (d) 25% decrease
    8 years ago by
    Ans 1 ->
    c) 20% decrease
    7 years ago by Sparsh.G.Sarode

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  21.  
    22. We have converted 0 degree celsius to kelvin then why we have not converted 1 degree celsius to kelvin
    8 years ago by Rajesh gupta
    Ans 1 ->
    Its rise in temp(change is same for kelvin or celsius)
    8 years ago by VAIBHAV GUPTA

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  22.  
    23. Is there any lecture on energy in wave. ie. Potential Energy or Kinetic Energy.??/
    8 years ago by Akhil Mehta

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  23.  
    24. sir how u considered cenripetal force on the wave ????? i couldn't understand it... :(
    8 years ago by Khushboo Jain
    Ans 1 ->
    .
    8 years ago by jeevan99
    Ans 2 ->
    as a particle is performing oscillation so centripital force will act on it
    8 years ago by rohit singh

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  24.  
    25. Yes but i request you to kindly check the answer for Q.5 of level 2 Assignment no.1 question of Wave motion and interference. Wrong answer has been provided for that.
    8 years ago by Hansal Shah

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  25.  
    26. A cylindrical tube open at both ends has a fundamental frequency f in air.The tube is dipped vertically into water such that half of its length is inside the water.The fundamental frequency of air column now is?
    8 years ago by sushma
    Ans 1 ->
    It is 'f' because if the open tube is dipped into the water it becomes a closed tube of length. 'L/2'.hence by substituting in the formulae we get the same result as that of open pipe if length 'L'.......
    8 years ago by L.m.rama krishna

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  26.  
    27. The elevation of a cloud is 60 degrees above the horizon.A thunder is heard 8s after the observation of lighting.The speed of sound is 330m/s.The vertical height of cloud from ground is?
    8 years ago by sushma
    Ans 1 ->
    It is about 2283.6 meters height........
    8 years ago by L.m.rama krishna

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  27.  
    28. The distance between two successive crests is defined as the wavelength. then what is wavelength in case of longitudinal waves?
    9 years ago by krishna chandra

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  28.  
    29. sir. you said that transverse waves doesnt exist 3D media because of collisions with the particles above and below it so that no energy will be remained to propagate.but in 2D media also there is a chance for collision with the particles above and below it then how does it exist in 2D media?
    9 years ago by krishna chandra

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  29.  
    30. SIR U SAID 4t,,,BUT WROTE 4x... [AT 1:01 ]
    10 years ago by himanshu rajesh muley
    Ans 1 ->
    that was jst a mistake!
    8 years ago by Khushboo Jain

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