The light striking a pane of glass is refracted as shown in Fig. 4.20. The law of refracti...

The light striking a pane of glass is refracted as shown in Fig. 4.20. The law of refraction states that na sin θa = nb sin θb where na and nb are the refractive indexes of the materials through which the light is passing and the angles are from a line that is normal to the surface. The refractive index of air is 1.00. What is the refractive index of the glass?

Figure 4.20