The radius of gyration of a solid sphere of radius r about a certain axis is r. The distance of this axis from the centre of the sphere is

The radius of gyration of a solid sphere of radius r about a certain a

1.	The radius of gyration of a solid sphere of radius r about a certain axis is r. The distance of this axis from the centre of the sphere is
Answer» R 0.5 r `sqrt(0.6) r` `sqrt(0.4) r` SOLUTION :`I = MK^(2) = mr^(2) = I_(CM) + mh^(2) = (2)/(5) mr^(2) + mh^(2)` or `h^(2) = (3)/(5) r^(2) or h = sqrt(0.6)` r