Current Attempt in Progress X When passing from a lower to a higher index of refraction, does the light bend toward the normal or away? What about when light goes in the opposite direction? Each part of the figure shows light that refracts through an interface between two materials. The incident ray (shown gray in the figure) consists of red and blue light. The approximate index of refraction for visible light is indicated for each material. Which of the three parts show physically possible refraction? 

(a) n = 1.3 b C n = 1.5

(b) n1.3 n = 1.5

(c) n = 1.3 n = 1.5