![]() First we apply Snell’s law and solve for the angle of incident Θ. ![]() Incident angle i = Θ and refractive angle r = 45°. Refractive index n1 in water is 1.33 and refractive index n2 in air is one. ![]() ![]() ![]() ![]() Incident angle is 32.1°. From the geometry of the diagram, we see that ![]() ![]() ![]() ![]() d = 2.71 m Pool true depth is 2.71 meters. |