A solid sphere of mass 'M' and radius 'a' is surrounded by a uniform concentric spherical shell of thickness 2a and mass 2M. The gravitational field at distance 3a from the centre will be

Question:

A solid sphere of mass ‘M’ and radius ‘a’ is surrounded by a uniform concentric spherical shell of thickness 2a and mass 2M. The gravitational field at distance 3a from the centre will be

Options :

(a) GM/3a^2
(b) GM/9a^2
(c) 2GM/3a^2
(d) 2GM/9a^2

Answer :

(a) GM/3a²

Answer Steps :

step 1

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