The light ray shown in the !gure makes an angle of 28.0 with the normal line at the boundary of linseed oil and water. Linseed oil Water a) Find the angle 31. Note that n = 1.48 for the linseed oil. Answer in units of . Answer in units of . b) Find the angle 92. Answer in units of . Answer in units of . A ray of light is incident at an angle of 364 0n the surface of a piece of crown glass whose index of refraction is 1.52. What is the angle of refraction? Answer in units of