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A thin circular disc and a uniform thin circular ring have their masses and radii in the ratio 2 : 1 and 1 : 2 respectively. The ratio of their moments of inertia about their respective diameters is
A thin circular disc and a uniform thin circular ring have their masses and radii in the ratio 2 : 1 and 1 : 2 respectively. The ratio of their moments of inertia about their respective diameters is
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Always double check if the axis is "diameter" or "tangent" or "axis perpendicular to plane". For a ring, \(I_{diameter} = \frac{1}{2}I_{axis}\). For a disc, \(I_{diameter} = \frac{1}{2}I_{axis}\).
Updated On: Jun 24, 2026
- 4 : 1
- 1 : 1
- 1 : 4
- 2 : 1
- 1 : 2
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The Correct Option is C
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