1.

Moment of inertia of a thin uniform rod about an axis passing through one end perpendicular to its length is I . Then moment of inertia the same rod about the central axis perpendicular to its plane isA. `I//4`B. 2IC. 4ID. 3 I

Answer» Correct Answer - A
`I_(e )=I,I_(c )= ?`
`(I_(e ))/(I_(c ))=(mL^(2))/(3)xx(12)/(ml^(2))=4`
`I_(e )=4I_(c )`
`therefore I_(c )=I//4`.


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