If the earth were to suddenly contract to `1//n^(th)` of its present radius without any change in its mass, the duration of the new day will be nearly

If the earth were to suddenly shrink to I//n of its present radius without any change in its mass the duration of the new day will be

If the earth were to suddenly contract to 1/n th of its present radius, without any change in its mass, then what will be the effect on the duration of the day?

If the earth, were suddenly contracted to (l/n)th of its present radius without change in its mass, then what will be the effect on the duration of the day.

If the earth suddenly contracts to one third of its present size without any change in its mass, the ratio of the kinetic energies of the earth after and before contraction will be

If the earth were to suddenly contract to half of its present radius (without any external torque on it), by what duration would the day be decreased ? Assume earth to be perfect solid sphere of radius (2)/(5)MR^(2) .

If the earth suddenly contrats to half of its original size without any change in mass,the new duration of the day would be :

If the radius of the earth contracts to half of its present value without change in its mass, what will be the new duration of the day?