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Keeping the mass of earth as constant, if its radius is reduced to `1//4^(th)` of its initial value, then the period of revolution of earth about its own axis and passing through the centre, in hours, in is (Assure earth to be a solid sphere and its initial period of rotation as 24 hrs.)

A

`1.5`

B

12

C

3

D

6

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A
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