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REC6 - I 1 denotes the maximum intensity A light wave has...

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UAHuntsville PH 113 Spring, 2010 Recitation Session No. 6 The magnetic field of an electromagnetic wave propagating in vacuum is given by r B = B 0 cos kz ω t ( ) ) x + sin kz t ( ) ) y [ ] (a) Find the electric field associated with this magnetic field. (b) Describe the polarization of this electromagnetic wave. Be as specific as possible. (c) This electromagnetic wave is incident on a wire-grid polarizer, whose wires are aligned parallel to the x -axis. What is the electromagnetic field after the polarizer? Explain your reasoning! A double-slit interference pattern has a fringe spacing of 4.0mm. How far from the central maximum is the first position at which the intensity is equal to I 1 ? (here,

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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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REC6 - I 1 denotes the maximum intensity A light wave has...

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