?In Fig. 35-34, a light ray is incident at angle \(\theta_{1}=50^{\circ}\) on a series
Chapter 35, Problem 10(choose chapter or problem)
In Fig. 35-34, a light ray is incident at angle \(\theta_{1}=50^{\circ}\) on a series of five transparent layers with parallel boundaries. For layers 1 and 3, \(L_{1}=20 \mu \mathrm{m}\), \(L_{3}=25 \mu \mathrm{m}\), \(n_{1}=1.6\), and \(n_{3}=1.45\). (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?
Text Transcription:
theta_1 =50^circ
L_1 =20 mu mathrm m
L_3 =25 mu mathrm m
n_1 =1.6
n_3 =1.45
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