Home Physics System of Particles Rotational Motion JEE Main 2021 The figure shows two solid discs with radius…
Physics System of Particles Rotational Motion JEE Main 2021 MCQ (Single Correct)

The figure shows two solid discs with radius R and r respectively. If mass per unit area is same for both, what is the ratio of MI of bigger disc around axis AB(Which is ⊥ to the plane of the disc and passing through its centre) of MI of smaller disc around one of its diameters lying on its plane? Given 'M' is the mass of the larger disc. (MI stands for moment of inertia)

A
B
C
D

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The correct answer is:
D

Ratio of moment of inertia

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