In the figure, light from ray A refracts from material 1 (n¡ = 1.74) into a thin layer of material 2 (n2 = 1.80), crosses that layer, and is then incident at the critical angle on the interface between materials 2 and 3 (n3 = 1.47). (a) What is the value of incident angle OA? (b) If 0a 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 Og? (d) If 0g is decreased, does part of the light refract into material 3? (a) Number Units (b) (c) Number i Units (d)

In the figure, light from ray A refracts from material 1 (n¡ = 1.74) into a thin layer of material 2 (n2 = 1.80), crosses that layer, and is then incident at the critical angle on the interface between materials 2 and 3 (n3 = 1.47). (a) What is the value of incident angle OA? (b) If 0a 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 Og? (d) If 0g is decreased, does part of the light refract into material 3? (a) Number Units (b) (c) Number i Units (d)