In order to shift a body of mass $m$ from a circular orbit of radius $3R$ to a higher radius $5R$ around the earth, the work done is
In order to shift a body of mass $m$ from a circular orbit of radius $3R$ to a higher radius $5R$ around the earth, the work done is
- A
$\frac {3GMm}{5R}$
- B
$\frac {1}{15} \frac {GMm}{R}$
- C
$\frac {GMm}{2R}$
- D
$\frac {GMm}{5R}$
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