The gravitational potential energy of a body of mass ‘ m ‘ at the earth’s surface is –m g R . Its gravitational potential energy at a height R from the earth’s surface will be

Q: The gravitational potential energy of a body of mass ‘ m ‘ at the earth’s surface is –m g R . Its gravitational potential energy at a height R from the earth’s surface will be (Here R is the radius of the earth)

(a) –2 mgR

(b) 2 mgR

(c) $\frac{1}{2}m g R $

(d) $-\frac{1}{2}m g R $

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Ans: (d)