NEET UG PHYSICS MCQ: SYSTEM OF PARTICLES

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A uniform heavy disc is rotating at constant angular velocity

\omega

about a vertical axis through its centre and perpendicular to the plane of the disc. Let L be its angular momentum. A lump of plasticine is dropped vertically on the disc and sticks to it. Which will be constant

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Correct option: C

L only

Option C (L only) is correct because in the absence of external torques, the angular momentum of the system is conserved.

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