Two metallic spheres of equal outer radii are found to have same moment of inertia about their respective diameters. Then, which of the following statement(s) is/are true?
- AThe two spheres have equal masses.
- BThe ratio of their masses is nearly 1.67 : 1.
- CThe spheres are made of different materials.
- DTheir rotational kinetic energies will be equal when rotated with equal uniform angular speed about their respective diameters.
✓ Correct answer: D
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