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OpenStudy (anonymous):
Help please - waves question A coating of film n=1.37 on glass slabs (n=1.6) is 8.45x10^-5 cm thick. If white light is incident normally, which visible wavelengths are missing in the reflected light? White light containing wavelengths from 400nm to 700nm. Answer in order of descending wavelength.
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OpenStudy (anonymous):
Light will be reflected from the first interface (air-film) and the second (film-glass). Any wavelength for which these two reflected waves exactly cancel will be missing.
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