An expensive spotlight is located at the bottom of a gold-plated swimming pool of depth d = 3.20 m (see Figure).

An expensive spotlight is located at the bottom of a gold-plated swimming pool of depth d = 3.20 m (see Figure). Determine the diameter of the circle from which light emerges from the tranquil surface of the pool

Light will emerge until the refraction angle is smaller than or equal to 90oSo, n2 * sinѲ1 = n1 * sinѲ2Here, n2 is refractive index of watern1 is refractive index of air.Ѳ2 = 90o1.33 sinѲ1...