The gravitational potential of two homogeneous spherical shells A and B of same surface density at their respective centers are in the ratio 3 : 4. If the two shells coalesce into single one such that surface charge density remains same, then the ratio of potential at an internal point of the new shell A is equal to -
Text Solution
Verified by ExpertsThe correct answer is:
C
M A = σ 4 π 
, M B = σ 4 π 
where σ is surface density
V A = 
, V B = 
Given 
= 
= 
then R B = 
R A
For new shell of mass M and Radius R -
M = M A + M B = 
= 
= 
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