\"a (la) What is the frequency of ultraviolet light that has a wavelength of 81.2 nm? :] Submit Answer Tries 0/10 (1b) What is the frequency of infrared light that has a wavelength of 1812.0 nm? :] Submit Answer Tries 0/10 (1c) What is the index of refraction of a material in which the red-light wavelength is 576.0 nm? The wavelength of the red light in a vacuum is 650.0 nm. Enter no units. :] Submit Answer Tries 0/10 '0 a (2) Two narrow slits 71.4um apart are illuminated with light of wavelength 565.0nm. What is the angle of the m=5.0 bright fringe? :] Submit Answer Tries 0/10 '0 e (3) A beam of light enters a layer of water at an angle of e = 33.5 deg with the vertical. What is the angle between the refracted ray and the vertical ((p)? The index of refraction of water is n = 1.333. Submit Answer Tries 0/ 10 G