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A thin film of oil (n = 1.4) of thickness 1.38micrometers. is compressed between two glass slabs (n = 1.5).
White light containing wavelengths from 400 to 700nm (measured in air) is incident normally on the film.
In the reflected light, which wavelengths are, in order of decreasing magnitude:
a) Missing?
nm,
nm,
nm,
nm.
b) Enhanced?
nm,
nm,
nm,
nm.

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