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If g is the acceleration due to gravity...

If g is the acceleration due to gravity on the surface of the earth , the gain in potential energy of an object of mass m raised from the earth's surface to a height equal to the radius R of the earth is

A

` (mg R)/( 4) `

B

` ( mg R) /( 2) `

C

` mg R `

D

` 2 mg R `

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