1. The problem statement, all variables and given/known data find TM p-parallel for (angle of incidence)=68 degrees, n(sub1) = 1.0, n(sub2) = 1.6 2. Relevant equations how to find angle of transmission, theta(sub)i 3. The attempt at a solution I know that when the angle of incidence is greater than the critical angle, all the light undergoes reflection. I have to use TM p-parallel equations. I know that using Brewster's angle, the angle of refraction is 90 degrees. How do I find the angle of transmission?