Physics · 2020
NEET 2020 · 14 October · Code Z6 · Q114
If the critical angle for total internal reflection from a medium to vacuum is 45°, then velocity of light in the medium is,
If the critical angle for total internal reflection from a medium to vacuum is $\displaystyle 45$°, then velocity of light in the medium is,
Official answer
(1)
$\displaystyle \frac{3}{\sqrt{2}} \times 10^8 \mathrm{~m} / \mathrm{s}$
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NEET (UG) 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.