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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

Two discs of moment of inertia and and angular speeds and are rotating along collinear axes passing through their centre of mass and perpendicular to their plane. If the two are made to rotate combindly along the same axis, the rotational of the system will be

Answer: (C)

Solution

Angular momentum conservation gives \dfrac{I_1ω_1+I_2ω_2}Extra open brace or missing close brace{I_1I_2$

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Question ID VK-159064