Physics · 2025
JEE Main · 2 April 2025, Shift 1 · Q32
Moment of inertia of a rod of mass 'M' and length 'L' about an axis passing through its center and normal to its length is ' α '. Now the rod is cut…
Moment of inertia of a rod of mass 'M' and length 'L' about an axis passing through its center and normal to its length is ' $\displaystyle \alpha$ '. Now the rod is cut into two equal parts and these parts are joined symmetrically to form a cross shape. Moment of inertia of cross about an axis passing through its center and normal to plane containing cross is :
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle \alpha / 4$
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JEE Main 2025 Physics question, with the answer from NTA’s final answer key. Where our answers come from.