Physics

Problem

The radius of gyration of a uniform rod of length

l

, about an axis passing through a point

\frac{l}{4}

away from the centre of the rod, and perpendicular to it, is: a.

\frac{1}{4}l

\frac{1}{8}l

\sqrt{\frac{7}{48}}l

\sqrt{\frac{3}{8}}l