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The period of moon's rotation around the...

The period of moon's rotation around the earth is approx. 29 days. IF moon's mass were 2 fold its present value and all other things remain unchanged, the period of Moon's rotation would be nearly

A

`29sqrt(2)` days

B

`29//sqrt(2)` days

C

`29xx2` days

D

`29` days

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The correct Answer is:
D
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