Find the Brewster angle of a glass slab of refractive index 1.5. If the slab is immersed in water of refractive index 4/3, find the angle of polarization.
a) θ_b = arctan(1.5) , θₚ = arctan(1.5/(4/3) )
b) θ_b = arctan(1/(1.5) ) , θₚ = arctan(1.5/4)
c) θ_b = arctan(1.5/(4/3) ) , θₚ = arctan(1.5)
d) θ_b = arctan((4/3) /1.5) , θₚ = arctan(1/(1.5) )