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 ra (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 2 n₁ 711 Units 112 n₂ n3 ng 14 Type L A 1.70 1.65 1.56 max 411

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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 ra (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
2
n₁
n1
Units
119
n₂ n3
1.70 1.65 1.56
11g
Type L λ
max 411
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 ra (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 2 n₁ n1 Units 119 n₂ n3 1.70 1.65 1.56 11g Type L λ max 411
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