Transmission through thin layers. In the figure, light is incident perpendicularly on a thin layer of material 2 that li

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Transmission Through Thin Layers In The Figure Light Is Incident Perpendicularly On A Thin Layer Of Material 2 That Li 1 (34.02 KiB) Viewed 68 times

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 4 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 21 Units 2 n₂ ng n3 123 14 18 Type LA 1.69 1.64 1.55 max 410