Question

On a smooth horizontal circular plate a bead of mass 'm tied to a string, the other end of which passes through a hole at the centre 'O' of plate, moves
with certain angular volocity. The string is pulled further to bring the radius to one fourth of its initial value. Then
(A) Tension increases
(B) Tension decrease
(C) Speed increase
(D) Angular velocity increase
​

Answer 1

Answer:

, Options are A and D respectively.