Questions

# The magnitudes of the gravitational force at distances  ${r}_{1}$ and  ${r}_{2}$ from the centre of a uniform sphere of radius R and mass M are ${F}_{1}$  and  ${F}_{2}$ respectively. Then

## Unlock the full solution & master the concept.

Get a detailed solution and exclusive access to our masterclass to ensure you never miss a concept
By Expert Faculty of Sri Chaitanya
a
F1F2=r1r2 if r1
b
F1F2=r12r22 if r1>R and r2>R
c
F1F2=r1r2 if r1>R and r2>R
d
F1F2=r22r12 if r1

Check Your Performance Today with our Free Mock Tests used by Toppers!

detailed solution

Correct option is A

g=43πρGr ∴g∝r  if rR If r1R and r2>R then F1F2=g1g2=r2r12

Similar Questions

A solid sphere of uniform density and radius R applies a gravitational force of  attraction equal to F1 on a particle placed at
P, distance 2R from the centre O of the sphere. A spherical cavity of radius R/2 is now made in the sphere as shown in figure. The sphere with cavity now applies an gravitational force F2 on same particle placed at P. The ratio F2/ F1 will be

Get your all doubts cleared from
Sri Chaitanya experts

+91