HP 48GII - Critical Angle (9, 2); Brewsters Law (9, 3)

5-38 Equation Reference
Critical Angle (9, 2)
Equation:
Example:
Given: n1=1, n2=1.5.
Solution:
θ c=41.8103_°.
Brewster's Law (9, 3)
The Brewster angle is the angle of incidence at which the reflected wave is completely polarized.
Equations:
Example:
Given: n1=1, n2=1.5.
Solution:
θ B=56.3099_°, θ 2=33.6901_°.
S I
N
θ
c
( )
n 1
n 2
- - - - - -
=
T A
N
θ
B
( )
n 2
n 1
- - - - - -
=
θ
B
θ
2+ 90=