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

Gravitation
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  2. Sir couldn't understand the g inside a cavity part and think you have explained it in your lectures. Also why it varying??
    7 years ago by Naman Gupta
    Ans 1 ->
    This is explained in electrostatic advance illustrations also... and inside cavity it is constant and it is not varying...
    7 years ago by Physics Galaxy
    Ans 2 ->
    Sir how did you write g=4/3(ppGl) couldn't understand
    7 years ago by Naman Gupta
    Ans 3 ->
    consider a point inside cavity (say P) which at position vector x from center of sphere and y from center of cavity, now write the results of gravitational fields due to full sphere and full cavity mass then take the difference of the two, you will get this result...
    7 years ago by Physics Galaxy

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