Material Air A 6. Keep the incident angle at a fixed value, and change the material at the bottom by changing Index of Refraction (n) 1.00 the index of refraction slowly from 1 to 1.6. Observe the corresponding changes in the Ai Water Glass reflected and refracted light. a. What effect does increasing the index of refraction of the bottom material have on how much the refracted light deviates from its original trajectory? Material Water A Index of Refraction (n) 1.33 As the index of refraction of the bottom material increases, the angle of refraction Ai Water Glass b. The refracted ray is not in the same direction as the incident ray. Does the refracted ray gets closer to the normal or further away from the normal