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Questions  

A satellite of mass m is revolving around the earth at height R (radius of the earth) from the earth's surface. Its potential energy will be

a
mgR
b
0.67mgR
c
−mgR2
d
0.33mgR

detailed solution

Correct option is C

PE=−GM2R( at height R)=−GMRm2R2≐−12mgR

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