question_answer

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 [Kerala (Engg.) 2002]

A)             \[29\sqrt{2}\]days

B)               \[29/\sqrt{2}\] days

C)             29 × 2 days

D)               29 days