Question

light traveling in a medium with a refractive index 1.28 is incident on a plate of another medium with index of refraction 2.22. At what angle of incidence is the reflected light fully polarized

Answer 1

Answer: The angle of incidence at which the light will fully be polarized is 60°

Explanation:

To find out the angle of incidence θB for which reflected light is fully polarized we use the equation

n1 sinθB = n2sin(90°− θB) = n 2cosθB

Since n1 is the index of refraction for medium 1 and n2 is the medium of refraction for medium 2 we then solve the equation to get

θB = tan −1 (n2/n1)

= tan −1 (2.22/1.28)=60.0°