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Three bodies have equal massses m. Body ...

Three bodies have equal massses `m`. Body `A` is solid cylinder of radius `R`, body `B` is a square lamina of side `R`, and body `C` is solid sphere of radius `R`. Which body has the smallest moment of inertia about an axis passing through their centre of mass and perpendicular to the plane (in case of lamina).

A

A

B

B

C

C

D

A and C both

Text Solution

Verified by Experts

The correct Answer is:
B
`L_(A) = (1)/(2) MR^(2),L_(B) = (MR^(2))/(6), L_(C) = (2)/(5) MR^(2)`,
`L_(B) lt L_(C) lt L_(A)`.
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