Consider a plane boundary between medium 1 (ε = ε1, μ = μ0) and medium 2 (ε = ε2, μ = μ0). Find the value of ε2/ε1 for each of the following cases for TM-polarized uniform plane waves incident on the boundary from medium 1: (a) total internal reflection occurs for θi ≥ 60º. (b) the reflection coefficient is zero for θi = 60º. (c) the critical angle of incidence for total internal reflection is the same as the Brewster angle for incidence from medium 2.

Consider a plane boundary between medium 1 (ε = ε1, μ = μ0) and medium 2 (ε = ε2, μ = μ0). Find the value of ε2/ε1 for each of the following cases for TM-polarized uniform plane waves incident on the boundary from medium 1: (a) total internal reflection occurs for θi ≥ 60º. (b) the reflection coefficient is zero for θi = 60º. (c) the critical angle of incidence for total internal reflection is the same as the Brewster angle for incidence from medium 2.