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The figure below shows light transmitted from air ($n_1=1$) to a material with index of refraction $n_2$.
Created for Albert.io. Copyright 2016. All rights reserved
If $\theta_i=20.0^o$ and $\theta_t=15.0^o$, what must the index of refraction of the second material ($n_2$) be? Round your answer to the nearest tenth.