A horizontal platform is rotating with uniform angular velocity around the vertical axis passing through its centre…

Q: A horizontal platform is rotating with uniform angular velocity around the vertical axis passing through its centre. At some instant of time a viscous fluid of mass ‘m’ is dropped at the centre and is allowed to spread out an finally fall. The angular velocity during this period

(a) Decrease continuously

(b) Decrease initially and increase again

(c) Remains unaltered

(d) Increase continuously

Ans: (b)