Comment
Share
Q)

# A spherical hole is made in a solid sphere of radius R. the mass of the sphere before hollowing was M. The gravitational field at the centre of the hole due to the remaining mass is

$\begin{array}{1 1}a) GM/2R^3 \\ b) GM/2R \\ c)GM/2R^2\\ d) GM/4R^2 \end{array}$