Transmission through 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.) Part of the light ends up in material 3 as ray 13 (the light does not reflect inside material 2) and r4 (the light reflects twice inside material 2). The waves of r3 and 14 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. Number i 388.6 n₁ 2 n₂ n3 Units nm Ng Type L A 1.70 1.45 1.83 max 201

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Transmission through 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.) Part of the light ends up in material 3 as ray 13 (the light does not reflect inside
material 2) and r4 (the light reflects twice inside material 2). The waves of r3 and r4 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.
Number i
388.6
n₁
#1
2
n₂
1₂
Units nm
113
74
n3 Type LA
1.70 1.45 1.83 max 201
Transcribed Image Text:Transmission through 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.) Part of the light ends up in material 3 as ray 13 (the light does not reflect inside material 2) and r4 (the light reflects twice inside material 2). The waves of r3 and r4 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. Number i 388.6 n₁ #1 2 n₂ 1₂ Units nm 113 74 n3 Type LA 1.70 1.45 1.83 max 201
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