Question: Violet light and red light travel through air and strike a block of plastic at the same angle of incidence. The angle of refraction is 30.740° for the violet light and 31.370° for the red light. The index of refraction for violet light in plastic is greater than that for red light by 0.0500.
Part A: Delaying any rounding off of calculations until the very end, find the index of refraction for violet light in plastic.
I've been having quite a bit of trouble understanding this question, Thank you so much for your help.