Two concentric shells of uniform density of mass M 1 and M 2 are situated as shown in the figure. The forces experienced by a particle of mass m when placed at positions A, B and C respectively are (given OA = p, OB = q and OC = r).
A
zero, G 
and G 
and G
B
G 
, G 
and G 
, G and G
C
G 
, G 
and zero
, G and zero
D
, G 
and zero
Text Solution
Verified by ExpertsThe correct answer is:
D
For point ‘A’:
For any point outside, the shells act as point situated at center.
So, F A = 
m
For point ‘B’:
There will be no force by shell B.
So, F B = 
For point ‘C’:
There will be no gravitational field.
So, F C = 0
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