Question

I Tho silver spheres of equal radii are in
Contact with each other and the gravitational
Porce of attraction between them is 'f'
units. Now, if the radii of the silver spheres
are doubled Capheres are in contact only)
then the gravitritional force of altuction
between them now is
f units.​

Answer 1

Answer:

Correct option is

D

16F

F=

R

2

GM

1

M

2

M=ρ×

3

4

πR

3

∴M∝R

3

∴F∝R

4

∴ If radius doubles, force becomes 2

4

times i.e. 16 times.