Problem

A laserbeam is incident on the interface between air and some dielectric of index n. For s...

A laserbeam is incident on the interface between air and some dielectric of index n. For small values of θi- show that θt = θi/n. Use this and Eq. (4.42) to establish that at near-normal incidence [-r]θi ≈ o = (n-1)/(n+ 1).

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