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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

Tow disc having same mass rotate about the same axes. If and be the densities of two bodies (), then what is the relation between and ?

Answer: (A)

Solution

For discs of equal mass and equal thickness, the denser disc has smaller volume and hence smaller radius, and $I =

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Question ID VK-040534