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solutionhwchap37 - Solutions Homework Problems Chapter 37...

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Solutions Homework Problems Chapter 37 Q37.2 The light from the flashlights consists of many different wavelengths (that’s why it’s white) with random time differences between the light waves. There is no coherence between the two sources. The light from the two flashlights does not maintain a constant phase relationship over time. These three equivalent statements mean no possibility of an interference pattern. Q37.4 Every color produces its own pattern, with a spacing between the maxima that is characteristic of the wavelength. With several colors, the patterns are superimposed and it can be difficult to pick out a single maximum. Using monochromatic light can eliminate this problem. Q37.6 If the oil film is brightest where it is thinnest, then air oil water n n n < < . With this condition, light reflecting from both the top and the bottom surface of the oil film will undergo phase reversal. P37.7 In double slit interference patterns the distance between two successive
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