With respect to air critical angle in a medium for light of red colour $(\lambda_{1})$ is $ heta$. Other facts remaining same, critical angle for light of yellow colour $\lbrack\lambda_{2} brack$ will be

Question

With respect to air critical angle in a medium for light of red colour $(\lambda_{1})$ is $	heta$. Other facts remaining same, critical angle for light of yellow colour $\lbrack\lambda_{2}brack$ will be

Dr. Abubacker · Accepted Answer

(c) Critical angle $= \sin^{- 1}\left( \frac{1}{\mu} ight)$
$	herefore	heta = \sin^{- 1}\left( \frac{1}{\mu_{\lambda_{1}}} ight)$ and $	heta^{'} = \sin^{- 1}\left( \frac{1}{{\mu_{\lambda}}_{2}} ight)$
Since $\mu_{\lambda_{2}} > {\mu_{\lambda}}_{1}$, hence $	heta^{'} < 	heta$

Q. With respect to air critical angle in a medium for light of red colour $(\lambda_{1})$ is $\theta$. Other facts remaining same, critical angle for light of yellow colour $\lbrack\lambda_{2}\rbrack$ will be

Explanation

Reviewed by Dr. Abubacker

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