question_answer

Which one of the following graphs represents correctly the variation of the intensity of gravitational field\[(I)\]with the distance (r) from the centre of a spherical shell of mass M and radius a

A)  

B)  

C)  

D)  

Correct Answer: B

Solution :

: (i) Inside the shell, field = zero                (ii) Outside the shell, field \[\propto \frac{1}{{{r}^{2}}}\]