The ray of light shown in FIGURE 26-79 passes from medium 1 to medium 2 to medium 3. The index of refraction in medium 1 is n1, in medium 2 it is n2 > n1, and in medium 3 it is n3 > n2. Show that medium 2 can be ignored when calculating the angle of refraction in medium 3; that is, show that n1 sin θ1 = n3 sin u3.
In figure 26-79

Transcribed Image Text:

п, п2 > п, 02 п, > п,