Practice question
Question
What is the physical significance of the moment of inertia in rotational motion?
Explanation
Moment of inertia measures a body’s resistance to angular acceleration, analogous to mass in linear motion, and depends on mass distribution. As per NCERT, applying relevant law/formula with correct units and sign convention leads to It measures resistance to angular acceleration. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.
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