The mass density of a planet of radius R varies with the distance r from its centre as (r)= _0 (1- r^2 R^2 )....

Question

The mass density of a planet of radius R varies with the distance r from its centre as (r)= _0 (1- r^2 R^2 ). Then the gravitational field is maximum at :

Accepted Answer

(B)

JEE Main 2020 Physics question

Solution