(III) A thin oil slick (n, = 1.50) floats on water (nw = 1.33). When a beam of white light strikes this film at normal incidence from air, the only enhanced reflected colors are red (650 nm) and violet (390 nm). From this information, deduce the (minimum) thickness t of the oil slick.

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(III) A thin oil slick (n, = 1.50) floats on water (nw = 1.33).
When a beam of white light strikes this film at normal
incidence from air, the only enhanced reflected colors are
red (650 nm) and violet (390 nm). From this information,
deduce the (minimum) thickness t of the oil slick.
Transcribed Image Text:(III) A thin oil slick (n, = 1.50) floats on water (nw = 1.33). When a beam of white light strikes this film at normal incidence from air, the only enhanced reflected colors are red (650 nm) and violet (390 nm). From this information, deduce the (minimum) thickness t of the oil slick.
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