JEE Main Physics question

Physics Gravitation JEE Main

A particle of mass lies at a distance from the centre of earth (radius ). The force of attraction between the particle and earth, , is

(A) for
(B) for Correct
(C) for Correct
(D) for

Answer: (B),(C)

Solution

Outside the earth (), the earth acts as a point mass, giving — matching (B). Inside a uniform earth (), only the mass within radius (which )

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Question ID VK-154516