A particle of mass M is placed at the centre of a uniform spherical shell of mass 2M and radius R. The gravitational potential on the surface of the shell is:

A particle of mass M is placed at the centre of a uniform spherical sh

1.	A particle of mass M is placed at the centre of a uniform spherical shell of mass 2M and radius R. The gravitational potential on the surface of the shell is:
Answer» `-(GM)/R` `-(3GM)/R` `-(2GM)/R` zero ANSWER :B