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  • The ratio of radius of gyration of a solid sphere of mass M and radius R about its own axis to the radius of gyration of the thin hollow sphere of same mass and radius about its axis is :<div c

The ratio of radius of gyration of a solid sphere of mass M and radius R about its own axis to the radius of gyration of the thin hollow sphere of same mass and radius about its axis is :

Option: 1

3:5


Option: 2

5:3


Option: 3

2:5


Option: 4

5:2


Answers (1)

\begin{aligned} & \frac{\mathrm{k}_1}{\mathrm{k}_2}=\frac{\sqrt{2 / 5} \mathrm{R}}{\sqrt{2 / 3} \mathrm{R}} \\ & \frac{\mathrm{k}_1}{\mathrm{k}_2}=\sqrt{3}: \sqrt{5} \end{aligned}

Posted by

Sumit Saini

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