CBSE 2023 · Region 2 · Set 2 · Q14 · 1 mark
A ray of light of wavelength $\displaystyle 600$ nm propagates from air into a medium. If its wavelength in the medium becomes $\displaystyle 400$ nm , the refractive index of the medium is
Official answer
From CBSE’s own marking scheme for this paper.
(B)
$\displaystyle 1.5$
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CBSE Class 12 Physics past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.