A solid sphere of radius `a` and mass `m` is surrounded by cocentric spherical shell of thickness `2a` and mass `2m` the gravitational field at a distance 3a from their centres isA. `(Gm)/(a^(2))`B. `(Gm)/(3a^(2))`C. `(Gm)/(5a^(2))`D. `(Gm)/(4a^(2))`

A solid sphere of radius `a` and mass `m` is surrounded by cocentric s

1.	A solid sphere of radius `a` and mass `m` is surrounded by cocentric spherical shell of thickness `2a` and mass `2m` the gravitational field at a distance 3a from their centres isA. `(Gm)/(a^(2))`B. `(Gm)/(3a^(2))`C. `(Gm)/(5a^(2))`D. `(Gm)/(4a^(2))`
Answer» Correct Answer - B

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A solid sphere of radius `a` and mass `m` is surrounded by cocentric spherical shell of thickness `2a` and mass `2m` the gravitational field at a distance 3a from their centres isA. `(Gm)/(a^(2))`B. `(Gm)/(3a^(2))`C. `(Gm)/(5a^(2))`D. `(Gm)/(4a^(2))`

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