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The concentric shells of masses M(1) and...


The concentric shells of masses `M_(1)` and `M_(2)` are having radii `r_(1)` and `r_(2)` which of the following is the correct expression for the gravitaional field at a distance-

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The correct Answer is:
A, B, D
The gravitatioN/Al force on m due to the shell of `M_2 is 0`.
m is a distance `(R_1+R_2)/2`
then gravitatioN/Al force due ot M is given by
=(GM_1m)/(((R_1+R_2)/2)^2)=(4GM_1m)/((R_1+R_2)^2)`
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