Class 11 NEET Physics Gravitation Questions

Here,
Mass of a particle = M
Mass of a spherical shell = M
Radius of a spherical shell = a
Let O be centre of a spherical shell. Gravitational potential at point P due to particle at O is
V1=−

GM a

2

Gravitational potential at point P due to spherical shell is
V2=−

GM

a

Hence, total gravitational potential at point P is
V=V1+V2