Answer to Question #94262 in Optics for Sridhar

Question #94262
.A container made of glass refractiveindex=1.5 contains a liquid.
A ray of light passing through the liquid falls on the bottom of the container at an angle of incidence =tan^(-1)(0.9)" and completely polarized.The ray should strike the bottom of the container at an angle of incidences so that it undergoes total internal reflection
1
Expert's answer
2019-09-12T10:36:54-0400

Brewster's law is given by formula

θ1=arctann2n1(1)θ_1=\arctan {\frac {n_2}{n_1}} (1)

In our case, we have n2=1.5

Using (1) we get n1=1.67


We can write for total internal reflection

θ2=arcsinn2n1(2)θ_2=\arcsin {\frac {n_2}{n_1}} (2)

Using (2) we get θ2=64°


Answer

64°



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