Assuming the radius of the earth as R, the change in gravitational potential energy of a...

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Assuming the radius of the earth as R, the change in gravitational potential energy of a body of mass m, when it is taken from the earth's surface to a height 3R above its surface, is (a) 3 mg R 3 (b) mgR (c) 1 mg R 3 (d) mgR Assuming the radius of the earth as R, the change in gravitational potential energy of a body of mass m, when it is taken from the earth's surface to a height 3R above its surface, is (a) 3 mg R 3 (b) mgR (c) 1 mg R 3 (d) mgR

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