A particle of mass M is placed at the centre of a uniform spherical shell of equal mas and radius a. The gravitational potential at a point P at a distance a/2 from the centre.

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 equal mas and radius a. The gravitational potential at a point P at a distance a/2 from the centre.
Answer» `-(GM)/(3A)` `-(2GM)/(3a)` `-(3GM)/a` `-(GM)/a` Answer :C