MHT CET Physics question

Physics Systems of Particles and Rotational Motion MHT CET

Two circular iron discs are of the same thickness. The diameter of A is twice that of B. The moment of inertia of A as compared to that of B is

(A)twice as large
(B)four times as large
(C)sixteen times as largeCorrect
(D)eight times of large

Answer: (C)

Solution

For equal thickness and density, , so \tfrac$

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Question ID VK-040202