Q. Assertion : The gravitational force on a particle inside a spherical shell is zero.
Reason : The shell shields other bodies outside it from exerting gravitational forces on a particle inside.

 2020  162 Gravitation Report Error

Solution:

The gravitational force on a particle inside a spherical shell is zero. However, unlike a metallic shell which shields electrical forces, the shell does not shield other bodies outside it from exerting gravitational forces on a particle inside.