Q6. Ratio of radius of gyration of a hollow sphere to that of a solid cylinder of equal mass, for moment of Inertia about their diameter axis AB as shown in figure is $\sqrt { 8 / x }$. The value of $x$ is :\\
\includegraphics[max width=\textwidth, alt={}, center]{4ed921fa-68a7-49bb-8423-eac8cce8175f-01_405_634_2065_164}\\
(1) 51\\
(2) 34\\
(3) 17\\
(4) 67