Free physics question bank
Moment of Inertia & Rotational Kinetic Energy questions with solutions
Practice Rotational Motion for JEE Main, JEE Advanced, NEET, and Classes 11–12. Attempt each question, then open it for the full solution.
Showing 1–10 of 92 questions
- MCQmediumRotational Motion
The square structure shown in figure consists of four point masses connected by rods of negligible mass. Mark the CORRECT option regarding the moment of inertia of the structure about the following axes:
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JEE MainsNEET
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A metre scale is balanced on a knife edge at its centre. When two coins, each of mass 10 g are put one on the top of the other at the 10.0 cm mark the scale is found to be balanced at 40.0 cm mark. The mass of the metre scale is found to be x × 10⁻² kg. The value of x is
JEE Mains 2022
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A circular ring has mass M and diameter r. Its moment of inertia about a tangential axis lying in the plane of the ring is:
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JEE Mains 2025 2 April Evening Shift
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The figure shows a uniform rod lying along the x-axis. The locus of all the points lying on the xy-plane, about which the moment of inertia of the rod is same as that about O is:-
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JEE MainsNEET
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Find the ratio of radii of gyration about tangential axes in their planes for a uniform disc and a thin ring of equal mass and radius.
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AIPMT 2004NEET
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Moment of inertia of a rectangular plate about an axis passing through P and perpendicular to the plate is I. Then moment of PQR about an axis perpendicular to the plane of the plate:
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JEE MainsNEET
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If a solid sphere of mass 5 kg and a disc of mass 4 kg have the same radius, then the ratio of moment of inertia of the disc about a tangent in its plane to the moment of inertia of the sphere about its tangent will be x/7. The value of x is _______.
JEE Mains25 January 2023Shift 2Evening Shift
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Two identical solid spheres each of mass 2 kg and radius 10 cm are fixed at the ends of a light rod. The separation between their centres is 40 cm. The moment of inertia of the system about an axis perpendicular to the rod through its midpoint is ______ × 10⁻³ kg m².
JEE Mains6 April 2023Shift 1Morning Shift
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A rod non uniform mass distribution. The mass increases from left end
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JEE MainsNEET
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For the same total mass which of the following will have the largest moment of inertia about an axis passing through its centre of mass and perpendicular to the plane of the body
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JEE MainsNEET
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