If g is the acceleration due to gravity on the earth's surface, the gain in the potential energy of an object of mass m raised from the surface of the earth to a height equal to the radius R of the earth, is:
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Updated on : 2022-09-05
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Correct option is B)
Acceleration due to gravity on earth's surface=g=R2GM.
Gain in potential energy=RGMm−2RGMm=2RGMm=21mgR