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Physics · 2020
JEE Main · 7 January 2020, Shift 1 · Q5
The radius of gyration of a uniform rod of length l, about an axis passing through a point l/4 away from the centre of the rod, and perpendicular to…
The radius of gyration of a uniform rod of length $\displaystyle l$, about an axis passing through a point $\displaystyle \frac{l}{4}$ away from the centre of the rod, and perpendicular to it, is :
Official answer
(3)
$\displaystyle \sqrt{\frac{7}{48}} l$
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JEE Main 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.