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A sphere of mass M and radius R(2) has...

A sphere of mass M and ` radius R_(2) ` has a concentric cavity of radius ` R_(1) ` as shown in figure The force F exerted by the sphere on a particle of mass m located at a distance r from the centre of sphere veries as `(0 lerleoo)` .

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
B
`F=0` when `0 lerleR_(1)`
becuses intensity is zero inside the cavity. F increases when `R_(1)lerleR_(2)`
`F prop 1/(r^(2)) when rgtR_(2)`
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