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Per NCERT §6.7.2 eqn 6.26, the time derivative of angular momentum L of a particle equals which quantity?
AThe momentum p of it
BThe torque τ on the particle
CThe angular velocity ω of it
DThe force F on it
Answer & Solution
Correct answer: B. The torque τ on the particle
NCERT §6.7.2 eqn 6.26 (and §6.7 for systems eqn 6.28): dL/dt = τ. Rotational analogue of F = dp/dt.
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