ght is incident upon the water (refractive index 1.33) at an angle of 60°, what is the angle of refraction? b. Find the critical angle of a sapphire which has a index of refraction of 1.77. c. A beam of white light goes from air into quartz at an angle of incidence of 50°. What is the angle between the red (660 nm) and blue (470 nm) parts of the refracted light

ght is incident upon the water (refractive index 1.33) at an angle of 60°, what is the angle of refraction? b. Find the critical angle of a sapphire which has a index of refraction of 1.77. c. A beam of white light goes from air into quartz at an angle of incidence of 50°. What is the angle between the red (660 nm) and blue (470 nm) parts of the refracted light