An incident ray in air (n=1.0) is approaching the boundary with glass (n=1.52) at an angle of incidence of 31.7 degrees. Calculate the angle of refraction.

Guest May 20, 2017

#1**+2 **

"*An incident ray in air (n=1.0) is approaching the boundary with glass (n=1.52) at an angle of incidence of 31.7 degrees. Calculate the angle of refraction.*"

Use Snell's law: sin(i)/sin(r) = n_{glass}/n_{air }where i is angle of incidence and r is angle of refraction.

.sin(31.7°)/sin(r) = 1.52

sin(r) = sin(31.7°)/1.52

r = sin^{-1}(sin(31.7°)/1.52)

r ≈ 20.2°

.

Alan
May 20, 2017