Monochromatic light is refracted from air into a medium of refractive index n. The ratio of the wavelengths of the incident and the refracted waves is:

1 : 1

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1 : n

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n : 1

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n^{2} : 1

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Solution

The correct option is D $n : 1$
Given, Refractive index $= n$ given alc to snell's law. $\Rightarrow n = \frac{V_{1}}{v_{2}} (\begin{matrix} v_{1} and v_{2} are velocity in respectine \end{matrix}$
$\Rightarrow$ and $\lor α λ (\begin{matrix} v = velocity λ = wavelength \end{matrix})$
$\frac{λ_{1}}{λ_{2}} = \frac{n}{1}$
$λ_{1} : λ_{2} = n : 1$
So, option (C) is correct.

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Monochromatic light is refracted from air into a medium of refractive index n. The ratio of the wavelengths of the incident and the refracted waves is:

The correct option is D n:1Given, Refractive index =n given alc to snell's law. ⇒n=V1v2(v1 and v2 are velocity in respectine ⇒ and ∨αλ(v= velocity λ= wavelength )λ1λ2=n1λ1:λ2=n:1So, option (C) is correct.