MHT CET 2024 Physics question
Three thin rods, each mass '2M' and length 'L' are placed along x, y and z axis which are mutually perpendicular. One end of each rod is at origin. Moment of inertia of the system about x-axis is
Answer: (A)
Solution
Find the moment of inertia of each rod about the x-axis and add them. The rod lying along the x-axis lies on the axis itself, so its moment of inertia is 0. The rod along the y-axis is perpendicular to the x-axis with one end on it, so . The rod along the
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