In the figure, light initially in material 1 refracts into material 2, crosses that material, and is then incident at the critical angle on the interface between materials 2 and 3. The indices of refraction are n1 = 1.58, n2 = 1.38, n3 = 1.16. (a) What is angle 0? (b) If 0 is increased, is there refraction of light into material 3? (a) Number Units (b)

In the figure, light initially in material 1 refracts into material 2, crosses that material, and is then incident at the critical angle on the interface between materials 2 and 3. The indices of refraction are n1 = 1.58, n2 = 1.38, n3 = 1.16. (a) What is angle 0? (b) If 0 is increased, is there refraction of light into material 3? (a) Number Units (b)

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