A cord is wound round the circumference of wheel of radius r. The axis of the wheel is horizontal and fixed and moment of inertia about it is I. A weight mg is attached to the end of the cord and falls from rest. After falling through a distance h, the angular velocity of the wheel will be.

Options

A. `sqrt(2gh)`
B. `sqrt((2Mgh)/(1+2MR^2))`
C. `sqrt((2Mgh)/(1+MR^2))`
D. `sqrt((2gh)/(1+MR))`