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Question
The moment of inertia of a circular disc of mass M and radius R about an axis passing through the centre of mass is I0. The moment of inertia of another circular disc of same mass and thickness but half the density about the same axis is ______.
Options
`"I"_0/8`
`"I"_0/4`
8I0
2I0
MCQ
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Solution
The moment of inertia of a circular disc of mass M and radius R about an axis passing through the centre of mass is I0. The moment of inertia of another circular disc of same mass and thickness but half the density about the same axis is 2I0.
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Moment of Inertia as an Analogous Quantity for Mass
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