A conical pendulum as shown in figure is rotating at angular velocity - about suspension point P- then for pendulum

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Standard IX

Physics

Viscous Force

A conical pen...

Question

A conical pendulum as shown in figure is rotating at angular velocity ' $ω$ ' about suspension point P, then for pendulum

angular momentum about P is conserved.

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torque due to tension about P is zero.

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angular momentum about axis of rotation is conserved.

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net torque about P is zero.

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Solution

The correct option is C angular momentum about axis of rotation is conserved.

About point P, $τ_{n e t} = m g R$
Since $τ_{n e t} \neq 0$ , L is not conserved.

Net torque about the axis of rotation due to gravity and the tension is zero. Therefore, the angular momentum is conserved.

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A conical pendulum as shown in figure is rotating at angular velocity 'ω' about suspension point P, then for pendulum

The correct option is C angular momentum about axis of rotation is conserved. About point P, τnet=mgR Since τnet≠0, L is not conserved. Net torque about the axis of rotation due to gravity and the tension is zero. Therefore, the angular momentum is conserved.

A conical pendulum as shown in figure is rotating at angular velocity ' $ω$ ' about suspension point P, then for pendulum

The correct option is C angular momentum about axis of rotation is conserved.

About point P, $τ_{n e t} = m g R$
Since $τ_{n e t} \neq 0$ , L is not conserved.

Net torque about the axis of rotation due to gravity and the tension is zero. Therefore, the angular momentum is conserved.