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# Snell’s Law: Transmission through Three Materials

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The figure below shows the transmission of light through three different materials, with index of refraction $n_1$, $n_2$, and $n_3$. The initial angle of incidence is $\theta_1= 40.0^o$, $n_1=1.3$, $n_2=1.5$, and $n_3=1.1$. The angles are not to scale.