What is the unit of torque in the SI system?
Torque is the product of force (N) and distance (m), so its SI unit is Newton-meter (Nm). As per NCERT, applying relevant law/formula with correct units and sign convention leads to N m. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.
Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.
