Question

By which curve will be variation of gravitational potential of a hollow sphere of radius R with distance be depicted ?
A.
B.
C.
D.

Answer 1

Correct Answer - C
For hollow sphere
`V_("in")=(-GM)/(R),V_("surface")=(-GM)/(R),V_("out")=(-GM)/(r)`
i.e., potential remains constant inside the sphere and it is equal to potential at the surface and increase when he point moves away from the surface of sphere.