Question

Find ratio of radius of gyration of a disc and ring of same radii at their tangential axis in plane.

• A. $\sqrt {\frac 53}$
• B. $\sqrt {\frac 56}$
• C. $1$
• D. $\frac 23$

Answer 1

Answer: (B)

$\sqrt {\frac 56}$

Answer 2

The correct option is (B): $\sqrt {\frac 56}$.