Critical Angle (9, 2)
Equation:
n1 SIN(θ c) = -----
n2
Example:
Given: n1=1, n2=1.5.
Solution: θc=41.8103_°.
Brewster’s Law (9, 3)
The Brewster angle is the angle of incidence at which the reflected wave is completely polarized.
Equations:
n2 | θ B + θ 2 = 90 |
TAN(θ B) = ----- |
n1 | |
Example:
Given: n1=1, n2=1.5.
Solution: θ B=56.3099_°, θ 2=33.6901_°.
5-38 Equation Reference