A solid cylinder of mass M and R is mounted on a frictionless horizontal axle so that it can freely rotate about this axis. A string of negligible mass is wrapped round the cylinder and a body of mass m is hung from the string as shown in figure the mass is released from rest then___
The angular speed of cylinder is proportional to hn, where h is the height through which mass falls, Then the value of n is___
(A) zero
(B) 1
(C) (1/2)
(D) 2