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A solid sphere of uniform density and ra...

A solid sphere of uniform density and radius R applies a gravitational force of attraction equal to `F_1` on a particle placed at P, distant 2R from the centre O of the sphere. A spherical cavity of radius R/2 is now made in the sphere as shown in the figure. The sphere with cavity now applies a gravitational force `F_2` on same particle placed at P. The ratio `F_2//F_1` will be

A

`1/2`

B

`7/9`

C

3

D

7

Text Solution

Verified by Experts

The correct Answer is:
B
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