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 r3 (the light does not reflect inside material 2) and r4 (the light reflects twice inside material 2). The waves of rz and ra 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 wavelength d in nanometers of the light as measured in air. Give the second least thickness L. ng 14 n1 n2 n3 Туре 1.63 1.41 1.83 min 2nd 600 Number Units

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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 r3
(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 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.
n2
n1
n2
n3
Туре
1.63
1.41
1.83
min
2nd
600
Number
Units
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 r3 (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 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. n2 n1 n2 n3 Туре 1.63 1.41 1.83 min 2nd 600 Number Units
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