Physics · 2022
JEE Main · 27 June 2022, Shift 1 · Q47
Consider a light ray travelling in air is incident into a medium of refractive index √(2 n). The incident angle is twice that of refracting angle.…
Consider a light ray travelling in air is incident into a medium of refractive index $\displaystyle \sqrt{2 n}$. The incident angle is twice that of refracting angle. Then, the angle of incidence will be :
Official answer
(4)
$\displaystyle 2 \cos ^{-1}\left(\sqrt{\frac{n}{2}}\right)$
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.