Ratio of radius of gyration of a circular dise to that of circular ring each of same mass and radius around their respective axes is

Step-by-step solution

Let I_d and I_r be the respective M.I. of the disc and the ring. If K _ d and K _ r are the respective radii of gyration, array ll & I _ d = 1 2 MR ^2= MK _ d ^2 & ~K _ d = R 2 & I _ r = MR ^2= MK _ r ^2 & ~K _ r = R & ~K _ d ~K _ r = R 2 = 1 2 array