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Keeping the mass of the earth as constan...

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

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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, is. Assume earth to be a solid sphere and its initial period of rotation as 24 hrs.

The rotation of earth about its axis is

If the speed of rotation of earth about its axis is increased,

If earth radius reduces to half of its present value then the time period of rotation will become:

If earth radius reduces to half of its present value then the time period of rotation will become: