1.

Potential energy of a satellite having mass ?m? and rotating at a height of \[6.4\times {{10}^{6}}m\] from the earth surface is [AIIMS 2000; CBSE PMT 2001; BHU 2001]

A.             \[-0.5\,mg{{R}_{e}}\]
B.             \[-mg{{R}_{e}}\]
C.             \[-2\,mg{{R}_{e}}\]
D.               \[4\,mg{{R}_{e}}\]
Answer» B.             \[-mg{{R}_{e}}\]


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