1. The problem statement, all variables and given/known data In the figure below, a light is incident at angle θ1 = 44° on a series of five transparent layers with parallel boundaries. For layers 1 and 3, L1 = 15 µm, L3 = 27 µm, n1 = 1.79, and n3 = 1.48. (a) At what angle does the light emerge back into air at the right? ° (b) How long does the light take to travel through layer 3? ps 2. Relevant equations t= LN/C 3. The attempt at a solution I plugged in L=27e-6 and N =1.48 and C=3e8 but this gave me 1.336e-13 or .1336 ps which is incorrect, what should I do.