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Wafiq Prasad Pillai
Asked: 2022-10-30T12:32:54+05:30 In:

The moment of inertia of a hollow sphere of mass `M` having internal and external radii `R` and `2R` about an axis passing through its centre and perpendicular to its plane is
A. `3/2 MR^(2)`
B. `13/32MR^(2)`
C. `31/35 MR^(2)`
D. `62/35 MR^(2)`

The moment of inertia of a hollow sphere of mass `M` having internal and external radii `R` and `2R` about an axis passing through its centre and perpendicular to its plane is
A. `3/2 MR^(2)`
B. `13/32MR^(2)`
C. `31/35 MR^(2)`
D. `62/35 MR^(2)`
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  1. Correct Answer – D
    If `I_(1)` and `I_(2)` are moment of inertia of hollow spheres of radii `R` and `2R` respectively, then
    `I=I_(2)-I_(1)` and mass `alphaR^(3)`

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