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The moment of inertia of a thin circular...

The moment of inertia of a thin circular disc of mass M and radius R about any diameter is

A

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

B

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

C

`MR^(2)`

D

`2MR^(2)`

Text Solution

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The correct Answer is:
A
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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 diameters 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?

    A
    `MR^(2)`
    B
    `1/2MR^(2)`
    C
    `3/2 MR^(2)`
    D
    `2MR^(2)`

  • Moment of inertia of a circular wire of mass M and radius R about its diameter is :

    A
    `(MR^(2))/(2)`
    B
    `MR^(2)`
    C
    `2MR^(2)`
    D
    `(MR^(2))/(4)`

  • The moment of inertia of thin spherical shell of mass M and radius R about a diameter is (2)/(3) MR. Its radius of gyration K about a tangent will be

    A
    `sqrt((2)/(3))R`
    B
    `(2)/(3)R`
    C
    `(5)/(3)R`
    D
    `sqrt((5)/(3))R`

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