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JEE PHYSICS MCQ: SYSTEM OF PARTICLES
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Analyzing
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(A): When there is no external torque, moment of inertia of a rotating body changes, its angular momentum remain conserved, but its kinetic energy changes.
(R): Angular momentum does not depend upon moment of inertia of the body.
(R): Angular momentum does not depend upon moment of inertia of the body.
View answer and explanation
Correct option: C
(A) is true but (R) is false
Option C ((A) is true but (R) is false) is correct because the assertion is true (angular momentum is conserved, but kinetic energy changes), while the reason is false (angular momentum depends on moment of inertia).
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