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JEE PHYSICS MCQ: SYSTEM OF PARTICLES

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A particle undergoes uniform circular motion. About which point on the plane of the circle, will the angular momentum of the particle remain conserved?

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Correct option: A

center of the circle

Option A is correct because the angular momentum is conserved about the center of the circle in uniform circular motion as the torque due to the centripetal force is zero.

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\mu(x)=a+\frac{b x}{L}

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\left(\frac{7}{12}\right) \mathrm{L}

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are related as : A solid metal ring and a disc of same radius and mass are rotating about their diameters with same angular frequency. The ratio of their respective rotational kinetic energy values is When a torque acting upon a system is zero, then which of the following will be constant A point particle of mass

1.0 \mathrm{~g}

is rotating in a circle of diameter

8 \mathrm{~cm}

. Its moment of inertia will be The angular velocity of a particle is given by

\omega = {t^4} + 2{t^3}

then its angular acceleration of the particle at

t = 1\,sec

\left( {rad\,{s^{ - 2}}} \right)