Physics · 2026
JEE Main · 23 January 2026, Shift 2 · Q42
When an unpolarized light falls at a particular angle on a glass plate (placed in air), it is observed that the reflected beam is linearly polarized.…
When an unpolarized light falls at a particular angle on a glass plate (placed in air), it is observed that the reflected beam is linearly polarized. The angle of refracted beam with respect to the normal is $\displaystyle \_\_\_\_$.
$\displaystyle \left(\tan ^{-1}(1.52)=57.7^{\circ}\right.$, refractive indices of air and glass are $\displaystyle 1.00$ and $\displaystyle 1.52$, respectively.)
Official answer
From NTA’s final answer key for this paper.
(1)
$\displaystyle 32.3^{\circ}$
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JEE Main 2026 Physics question, with the answer from NTA’s final answer key. Where our answers come from.