JEE Main 2006 Physics question

Physics Systems of Particles and Rotational Motion JEE Main 2006

Four point masses, each of value m, are placed at the corners of a square of side . The moment of inertia through and parallel to is

(1)
(2)
(3)Correct
(4)Correct

Answer: (3),(4)

Solution

The axis through A parallel to BD is perpendicular to the diagonal AC. Distances from the axis: A: 0; C: ; B and D:

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Question ID VK-038748