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 ₁ and nterfere, and here we consider the type of interference to be either maximum (max) or minimum (min). The table below provides the indexes of refraction n₁, n₂, and n3, the type of interference, and the hinlayer thickness L in nanometers. Give the wavelength that is in the visible range. n₁ 3 n₂ #1 1.43 1.60 n3 101₂ 11g Type L A 1.78 min 247

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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 ₁ and ₂
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 n₁, n₂, and n3, the type of interference, and the
thinlayer thickness L in nanometers. Give the wavelength that is in the visible range.
2
n₁
21
n₂ n3
119
→→
ng
Type L A
1.43 1.60 1.78 min 247
Transcribed Image Text: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 ₁ and ₂ 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 n₁, n₂, and n3, the type of interference, and the thinlayer thickness L in nanometers. Give the wavelength that is in the visible range. 2 n₁ 21 n₂ n3 119 →→ ng Type L A 1.43 1.60 1.78 min 247
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