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The moment of inertia of circular disc a...

The moment of inertia of circular disc about its diameter is 200 g `cm^(2)`. Then its moment of inertia about an axis passing through its centre and normal to its face is :

A

`100gcm^(2)`

B

`200gcm^(2)`

C

`400gcm^(2)`

D

`1000gcm^(2)`

Text Solution

Verified by Experts

The correct Answer is:
C

By theorem of `_|_` axis
`I_(zz.)=I_(AB)+I_(CD)`
`I_(zz.)=21_(d)=400gcm^(2)`
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Knowledge Check

  • The moment of inertia of a uniform circular disc of mass M and radius R about any of its diameter is (1)/(4)MR^(2) . What is the moment of inertia of the disc about an axis passing through its centre and normal to the disc?

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