From a complete ring of mass \( M \) and radius \( R \), a \( 30^{\circ} \) sector is removed. T... VIDEO
From a complete ring of mass \( M \) and radius \( R \), a \( 30^{\circ} \) sector is removed. The moment of inertia of the incomplete ring about an axis passing through the centre of the ring and perpendicular to the plane of the ring is
(1) \( \frac{9}{12} M R^{2} \)
(2) \( \frac{11}{12} M R^{2} \)
(3) \( \frac{11.3}{12} M R^{2} \)
(4) \( M R^{2} \)
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