The principle of conservation of angular momentum, states that angular momentum

Q: The principle of conservation of angular momentum, states that angular momentum

(a) Always remain conserved

(b) Is the product of moment of inertia and velocity

(c) Remains conserved until the torque acting on it remains constant

(d) None of these

Ans: (d)

Sol: When there is no net external torque acting on a particle,

$\displaystyle \frac{d\vec{L}}{dt} = 0$

$\vec{L} = constant$

Therefore, the angular momentum of the particle remains invariant in the absence of any net external torque.