Question

1 through 12 Reflection by thin layers In Fig. 35-22, light is inci-. is missing, give the second least thickness or the t dent perpendicularly on a thin layer of material 2 that lies be ness as indicated. tween (thicker) materials 1 and 3. (The rays are tilted only for clarity.) The waves of rays r and r2 interfere, and here we con- sider the type of interference to be either maximum (max) or minimum (min). For this situation, each problem in Table 35-2 refers to the indexes of refraction n, n2, and ny, the type of inter- ference, the thin-layer thickness L in nanometers, and the wave- Figure 35-22 Problems1 through 12. length in nanometers of the light as measured in air, where A is missing, give the wavelength that is in the visible range. Where L L. Type min min min 1.40 1.40 1.50 1.46 1.46 1.60 1.85 1.76 210 2nd 380 1 1 482

Answer 1

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