There is a concentric hole of radius in a solid sphere of radius

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

There is a concentric hole of radius

R

in a solid sphere of radius

2R

. Mass of the remaining portion is

M

. What is the gravitational potential at centre is

-\frac{nGM}{14R}

. Find the value of

n