Two waves of light in air, of wavelength 600 0 nm, are initially in phase They then travel through plastic layers as shown in Figure, with L1 4 00m, L2 3 50m, n1 1 4l, and n2 1 60 (a) What multiple of gives their phase difference after they both have emerged from the layers (b) If the waves later a...

a We choose a horizontal x axis with its origin at the left edge of th ...

Two waves of light in air, of wavelength = 600.0 nm, are initially in phase. They

Question:

Two waves of light in air, of wavelength λ = 600.0 nm, are initially in phase. They then travel through plastic layers as shown in Figure, with L1 = 4.00μm, L2 = 3.50μm, n1 = 1.4l, and n2 = 1.60.

(a) What multiple of λ gives their phase difference after they both have emerged from the layers?

(b) If the waves later arrive at some common point with the same amplitude, is their interference fully constructive, fully destructive, intermediate but closer to fully constructive or intermediate but closer to fully destructive?