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A circle disc has a tiny hole in it, at ...

A circle disc has a tiny hole in it, at a distance `z` from its center. Its mass is `M` and radius `E(Rgtz)`. A horizontal shaft is passed through the hole and held fixed so that the disc can freely swing in the vertical plane. For small distrubance, the disc performs `SHM` whose time period is minimum for `z=`

A

`R//2`

B

`R//3`

C

`R//sqrt2`

D

`R//sqrt3`

Text Solution

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The correct Answer is:
C
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