A, B and C are disc, solid sphere and spherical shell respectivel… | JEE Main 2025 Physics PYQ

NVAMediumJEE Main 2025 · 7 April, Shift 1Moment of Inertia & Radius of Gyration

A, B and C are disc, solid sphere and spherical shell respectively with the same radii and masses. These masses are placed as shown in the figure.

Three equal circular bodies arranged in triangular contact: top disc A, lower left solid sphere B, lower right spherical shell C, with a vertical axis PQ passing through the top body and the midpoint between the two lower bodies.

The moment of inertia of the given system about PQ is $\frac{x}{15} I$ , where $I$ is the moment of inertia of the disc about its diameter. The value of $x$ is:

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