Practice question
Question
What is the physical quantity that measures the rotational inertia of a body?
Explanation
Moment of inertia (I) measures rotational inertia, reflecting how mass is distributed relative to the axis and the body’s resistance to angular acceleration. As per NCERT, applying relevant law/formula with correct units and sign convention leads to Moment of inertia. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.