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Unformatted text preview: I 1 denotes the maximum intensity.) A light wave has wavelength 500nm in vacuum. a) What is the wavelength of this light as it travels through water? (n=1.33) b) Suppose that 1.0mm-thick layer of water is inserted into one arm of a Michelson interferometer. How many extra wavelength does the light now travel in this arm? c) By how many fringes will this water layer shift the interference pattern? A double-slit experiment is set up using a He-Ne laser (wavelength 633nm). Then a very thin piece of glass (n=1.50) is placed over one of the slits. Afterward, the central point on the screen is occupied by what had been the m=10 dark fringe. How thick is the glass?...
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- Spring '09