Physics · 2023
JEE Main · 11 April 2023, Shift 1 · Q35
The critical angle for a denser-rarer interface is 45^°. The speed of light in rarer medium is 3 × 10^8 m / s. The speed of light in the denser…
The critical angle for a denser-rarer interface is $\displaystyle 45^{\circ}$. The speed of light in rarer medium is $\displaystyle 3 \times 10^8 \mathrm{~m} / \mathrm{s}$. The speed of light in the denser medium is:
Official answer
From NTA’s final answer key for this paper.
(1)
$\displaystyle 2.12 \times 10^8 \mathrm{~m} / \mathrm{s}$
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JEE Main 2023 Physics question, with the answer from NTA’s final answer key. Where our answers come from.