Practice question

For a uniform disk: I = 12MR2. M = 3kg, R = 0.6m. I = 12×3×(0.6)2 = 1.5×0.36 = 0.54kg m2. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 0.54 kg m². This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.