A light wave travels through three transparent materials of equal thickness. Rank in order, fro

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14.Waves and Sound

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A light wave travels through three transparent materials of equal thickness. Rank in order, from the highest to lowest, the indices of refraction $n_1, n_2$ and $n_3$.

A

$n_3 > n_1 > n_2$

B

$n_1 < n_3 < n_2$

C

$n_3 < n_1 > n_2$

D

$n_2 > n_3 > n_1$

Solution

${\lambda ^i} = \frac{\lambda }{n}$

${\lambda _2} > {\lambda _1} < {\lambda _3}$

${n_2} < {n_1} < {n_3}$

Standard 11

Physics

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