A body of mass m is moved to a height h eqaul to the radius of the earth. the increase in potential energy is
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A body of mass m is moved to a height equal to 4. the radius of the earth R (above surface). The increase in its potential energy is :- (1) mgR (3) (1/2)mgR (2) 2mgR (4) (1/4)mgR.
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