Easy
The period of moon's rotation around the earth is nearly $29$ days. If moon's mass were $2$ fold, its present value and all other things remained unchanged, the period of moon's rotation would be nearly ......... $days$.
- A$29\sqrt{2}$
- B$\frac{29}{\sqrt{2}}$
- C$29 \times 2$
- D$29$
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