A thin circular disk is in the $x y$ plane as shown in the figure. The ratio of its moment of inertia about $z$ and $z'$ axes will be: (1) $1 : 4$ (2) $1 : 5$ (3) $1 : 3$ (4) $1 : 2$
A thin circular disk is in the $x y$ plane as shown in the figure. The ratio of its moment of inertia about $z$ and $z'$ axes will be:\\
(1) $1 : 4$\\
(2) $1 : 5$\\
(3) $1 : 3$\\
(4) $1 : 2$