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JEE PHYSICS MCQ: SYSTEM OF PARTICLES
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Statement-I: Gravitational torque due to weight of a body about its centre of gravity is zero.
Statement-II: In the absence of external torque the angular momentum of a body changes.
Statement-II: In the absence of external torque the angular momentum of a body changes.
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Correct option: A
Statement-I is true and Statement-II is false
Option A (Statement-I is true and Statement-II is false) is correct because gravitational torque about the center of gravity is zero, and angular momentum is conserved in the absence of external torque.
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