The ratio of the moment of inertia of a disc and a hoop is
Correct answer: C. 2:1
- A. 1:2
- B. 1:4
- C. 2:1
- D. 8:1
Explanation
This option accurately reflects the calculated ratio.As derived earlier, the moment of inertia of a ring (Ir) is twice that of a disc (Id) with the same mass and radius due to the wider distribution of mass in the ring.
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