In figure a light ray is incident at angle 1 50o on a series of five transparent layers with parallel boundaries For layers 1 and 3, L1 20m, L3 25m, n1 1 6, and n3 1 45 (a) At what angle does the light emerge back into air at the right (b) How much time does the light take to travel through layer 3 Air Air

Question: In figure a light ray is incident at angle 1 = 50o on a series of five transparent layers with parallel boundaries. For layers 1

In figure a light ray is incident at angle θ1 = 50o on a series of five transparent layers with parallel boundaries. For layers 1 and 3, L1 = 20μm, L3 = 25μm, n1 = 1.6, and n3 = 1.45.

(a) At what angle does the light emerge back into air at the right?

(b) How much time does the light take to travel through layer 3?

Air Air

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