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Perpendicular Axis Theorem

A ring and a ...

Question

A ring and a thin hollow cylinder have same mass and radius. If $I_{r}$ be the moment of inertia of the ring about its axis and $I_{s}$ be that of the cylinder, then which of the following relations is correct?

A

I_{r} = I_{s}

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B

I_{r} = 2 I_{s}

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C

2 I_{r} = I_{s}

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D

None of the above

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Solution

The correct option is A $I_{r} = I_{s}$

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