19. •• Two parallel plates are separated by a small distance as illustrated in ▼ Figure 24.32. If the top plate is illuminated with light from a He–Ne laser

(λ = 632.8 nm), for what minimum separation distances will the light be

(a) constructively reflected and

(b) destructively reflected? [Note: t = 0 is not an answer for part (b).]

Transcribed Image Text:

Light Glass I Glass