The moment of inertia of a solid sphere is 10kgm2. What will be the moment of inertia of a very thin spherical shell of the same mass and radius as that of the solid sphere?

The moment of inertia of a solid sphere is 10kgm2. What will be the moment of inertia of a very thin spherical shell of the same mass and radius as that of the solid sphere? Correct Answer 16.67kgm2

Moment of inertia of solid sphere ‘I1’ = 2/5 MR2 = 10kgm2. Moment of inertia of thin spherical shell ‘I2’= 2/3 MR2. ∴ I2 = 5/3I1 = 5/3 * 10 = 16.67kgm2.
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