The radius of gyration of a uniform rod of length $l$, about an axis passing through a
point ${l \over 4}$ away from the centre of the rod,
and perpendicular to it, is :
${1 \over 8}l$
${1 \over 4}l$
$\sqrt {{7 \over {48}}} l$
$\sqrt {{3 \over 8}} l$
Solution
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