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*Chapter 35, Problem 050
Reflection by thin layers. In the figure, light is incident perpendicularly on a thin layer of material 2 that lies between
(thicker) materials 1 and 3. (The rays are tilted only for clarity.) The waves of rays r and r2 interfere, and here we
consider the type of interference to be either maximum (max) or minimum (min). The table below provides the indexes of
refraction n, n2, and n3, the type of interference, and the wavelength A in nanometers of the light as measured in air.
Give the second least thickness L.
Ng
n1
n2
n3
Туре
1.39
1.46
1.80
min
2nd
570
Number
11 Units
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Transcribed Image Text:*Chapter 35, Problem 050 Reflection by thin layers. In the figure, light is incident perpendicularly on a thin layer of material 2 that lies between (thicker) materials 1 and 3. (The rays are tilted only for clarity.) The waves of rays r and r2 interfere, and here we consider the type of interference to be either maximum (max) or minimum (min). The table below provides the indexes of refraction n, n2, and n3, the type of interference, and the wavelength A in nanometers of the light as measured in air. Give the second least thickness L. Ng n1 n2 n3 Туре 1.39 1.46 1.80 min 2nd 570 Number 11 Units
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