A uniform solid sphere of mass M and radius a is surrounded symmetrically by a uniform
Channel: Doubtnut
Date: 2020-06-28

A uniform solid sphere of mass M and radius a is surrounded symmetrically by a uniform thin spherica shel of equla mass and radius 2a.Find the gravitational field at a distance `a. 3/2 a from the centre , b. 5/2 as from the centre.