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A circular disc of mass M and radius R i...

A circular disc of mass M and radius R is suspended from a nail in the wall. The nail is fixed very near to the rim of the disc. The moment of inertia of the disc about an axis along the nail is

A

`MR^(2)`

B

`(MR^(2))/(2)`

C

`(3)/(2)MR^(2)`

D

`(MR^(2))/(4)`

Text Solution

Verified by Experts

The correct Answer is:
C
The nail acts as an axis of rotation, which is tangential to the disc and perpendicular to its plane `(I=(3)/(2)MR^(2))` .
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