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A uniform film of oil (n = 1.31) is floating on water. When sunlight in air is incident normally on the film, an observer finds that the reflected light has a brightness maximum at 1 = 450 nm and a brightness minimum at 2= 600 nm. What is the thickness of the oil film? ANS: 343.5 nm

A uniform film of oil (n = 1.31) is floating on water. When sunlight in air is incident normally on the film, an observer finds that the reflected light has a brightness maximum at 1 = 450 nm and a brightness minimum at 2= 600 nm. What is the thickness of the oil film? ANS: 343.5 nm

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A uniform film of oil (n = 1.31) is floating on water. When sunlight in air is incident normally on the film, an observer finds that the reflected light has a brightness maximum at 1 = 450 nm and a brightness minimum at 2= 600 nm. What is the thickness of the oil film? ANS: 343.5 nm
Transcribed Image Text:A uniform film of oil (n = 1.31) is floating on water. When sunlight in air is incident normally on the film, an observer finds that the reflected light has a brightness maximum at 1 = 450 nm and a brightness minimum at 2= 600 nm. What is the thickness of the oil film? ANS: 343.5 nm
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