We note that only the 552 nm wavelength falls within the visible light range. (b) As remarked above, maximum transmission into the water occurs for wavelengths given by 21242122LmnnLm=+FHGIKJ⇒=+λλwhich yields λ= 2208 nm, 736 nm, 442 nm … for the different values of m. We note that only the 442 nm wavelength (blue) is in the visible range, though we might expect some red contribution since the 736 nm is very close to the visible range. 53. The situation is analogous to that treated in Sample Problem 35-6, in the sense that the incident light is in a low index medium, the thin film has somewhat higher n = n2, and the last layer has the highest refractive index. To see very little or no reflection, according to the Sample Problem, the condition 212where 0,1, 2,.
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