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

1. MR²/2
2. MR²
3. 2MR²
4. MR²/4

Correct answer: MR²/2

Solution

The moment of inertia of a circular wire about its diameter is derived from the integral of mass distribution, which results in the formula MR²/2, indicating that the mass is evenly distributed along the circular path.

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