An aquarium filled with water (n = 1.33) has flat glass sides whose index of refraction is 1.56. A beam of light from outside the aquarium strikes the glass at a 43.5° angle to the perpendicular (Figure 1) .
Part A What is the angle of this light ray when it enters the glass? Express your answer using three significant figures.
Part B What is the angle of this light ray when it enters the water? Express your answer using three significant figures.
Part C What would be the refracted angle if the ray entered the water directly? Express your answer using three significant figures.