JEE Main Physics question

One goes from the centre of the earth to a distance two-thirds the radius of the earth along this path, where will the acceleration due to gravity be the greatest?

(A)At the centre of the earth
(B)At a point one-half the radius of the earth (from the centre)
(C)At a point one-third the radius of the earth (from the centre)
(D)At the point two-thirds the radius of the earth (the farthest point reached)Correct

Answer: (D)

Solution

Inside a uniform-density earth, (distance from the centre), increasing monotonically from zero at the centre out to the surface. Along the stated path (from the centre out to , still inside the

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Question ID VK-154420