Assuming the radius of the earth as R, the change in gravitational pot – McqOptions

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1.	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.	\[3\text{ }mgR\]
B.	\[\frac{3}{4}mgR\]
C.	\[\text{1 }mgR\]
D.	\[\frac{3}{2}mgR\]
Answer» C. \[\text{1 }mgR\]

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