1. The problem statement, all variables and given/known data White light is incident on a sheet of glass as shown below. Complete the ray tracing diagram. 2. Relevant equations n1(sinx)=n2(siny), where n = the refractive index of the medium. 3. The attempt at a solution The ray on the bottom is hitting the glass at 90 degree angles, so it should just go straight through, right? Whilst the top one is hitting part of the glass at an angle, so it should first be defracted downwards, and then upwards again when it exits the glass. Is that all I need to draw in there, or is there something else that I'm missing?