White light is incident onto a 30.0[deg] prism at the 40.0[deg] angle shown in the figure. Violet light emerges perpendicular to the rear face of the prism. The index of refraction of violet light in this glass is 2.00% larger than the index of refraction of red light. At what angle (phi) does red light emerge from the rear face?
The Attempt at a Solution
So This is what I was thinking, but not sure if I can use those equations like I did.
Also, if the violet light is refracting perpendicular, that means it was not perpendicular to the right side before it exited/refracted, right?..
Thanks for your help!