Say we have a glass block floating in a pool of water, and a light ray contacts the surface at an angle 0, = 40 with respect to the normal of the surface, and refracts through the glass surface. At what angle 02 does the light enter the glass block, and at what angle 03 does the light leave the glass block and enter the pool of water? n1 = nair = 1 n2 = nglass 1.66 n3 = Nwater = 1.333 n1 n2 n3 03