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White light is shone on a very thin layer of mica (n = 1.57) that is...
White light is shone on a very thin layer of mica (n = 1.57) that is surrounded by air (n = 1.00) above the film and the film rests on a material with index n = 1.80. Above the layer of mica, interference maxima for two wavelengths (and no others in between) are seen; one blue wavelength of 480 nm, and one yellow wavelength of 560 nm.
- What is the thickness of the mica layer?
- If the thickness of the mica layer were doubled, what are the largest and smallest visible wavelengths observed in the reflected light?
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