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JEE PHYSICS MCQ: SYSTEM OF PARTICLES

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An ant is sitting at the edge of a rotating disc. If the ant reaches the other end, after moving along the diameter, the angular velocity of the disc will

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Correct option: C

First increases and then decreases

Option B (First decreases and then increases) is correct because the moment of inertia first decreases as the ant moves towards the center and then increases as it moves away, leading to corresponding changes in angular velocity to conserve angular momentum.

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