Physics · 2025
JEE Main · 8 April 2025, Shift 2 · Q28
A rod of linear mass density ' λ ' and length ' L ' is bent to form a ring of radius ' R '. Moment of inertia of ring about any of its diameter is.
A rod of linear mass density ' $\displaystyle \lambda$ ' and length ' $\displaystyle L$ ' is bent to form a ring of radius ' $\displaystyle R$ '. Moment of inertia of ring about any of its diameter is.
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle \frac{\lambda L^3}{8 \pi^2}$
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JEE Main 2025 Physics question, with the answer from NTA’s final answer key. Where our answers come from.