Tristan sets the angle of incidence, 1, equal to 40, and varies the index of refraction of the glass, nglass. What does Camilla observe? "As the index of refraction increases, the angle of refraction, 2, decreases." "As the index of refraction increases, the angle of refraction, 2, also increases." "As the index of refraction decreases, the angle of refraction, 2, remains constant." "As the index of refraction decreases, the angle of refraction, 2, also decreases