Question 9 of 10 5.5 / 10 E ... View Policies Show Attempt History Current Attempt in Progress Your answer is partially correct. In the figure, light from ray A refracts from material 1 (nj = 1.66) into a thin layer of material 2 (n2 = 1.79), crosses that layer, and is then incident at the critical angle on the interface between materials 2 and 3 (ng = 1.36). (a) What is the value of incident angle OA? (b) If OA is decreased, does part of the light refract into material 3? Light from ray B refracts from material 1 into the thin layer, crosses that layer, and is then incident at the critical angle on the interface between materials 2 and 3. (c) What is the value of incident angle OB? (d) If OB is decreased, does part of the light refract into material 3? ng (a) Number 52.3 Units . (degrees) (b) yes (c) Number 41.23 Units . (degrees) (d) no