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Two small satellies move in a circular o...

Two small satellies move in a circular orbits around the earth, at disatnce `r` and `(r + dr)` from the centre of the earth. Their time periods of rotation ate `T` and `T + dT (Delta r lt lt r, DeltaT lt lt T)`. Then

A

`/_\T=3/2T(/_\r)/r`

B

`/_\T=-3/2T(/_\r)/r`

C

`/_\T=2/3T(/_\r)/r`

D

`/_\T=T(/_\r)/r`

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The correct Answer is:
A
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