What is the thickness of the film

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Reference no: EM13310573

A thin film of alcohol (n=1.36) lies on a flat glass plate (n=1.51). When monochromatic light is incident normally on the system, the reflected light is a minimum for lambda = 512nm and a maximum for lambda = 640nm. There are no intervening wavelengths that give rise to a maximum or minimum. What is the thickness of the film?

Reference no: EM13310573

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