Physics · 2026
JEE Main · 23 January 2026, Shift 1 · Q28
Two small balls with masses m and 2m are attached to both ends of a rigid rod of length d and negligible mass. If angular momentum of this system is…
Two small balls with masses $\displaystyle m$ and 2m are attached to both ends of a rigid rod of length $\displaystyle d$ and negligible mass. If angular momentum of this system is $\displaystyle L$ about an axis $\displaystyle (A)$ passing through its centre of mass and perpendicular to the rod then angular velocity of the system about $\displaystyle A$ is :
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle \frac{3}{2} \frac{L}{m d^2}$
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JEE Main 2026 Physics question, with the answer from NTA’s final answer key. Where our answers come from.