The visibility V of the fringes observed in a Michelson interferometer is defined as Where Imax and
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The visibility V of the fringes observed in a Michelson interferometer is defined asWhere Imax and Imin are the intensities at the maxima and minima of the fringe pattern. In observations of the sodium D-lines, V varies from a maximum of 1.00 to a minimum of 0.33 over a range of approximately 500 fringes. Explain these observations and deduce values for the fractional wavelength difference between the sodium D-lines and for their relative intensities.
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Imin Imax Imax + Imin
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Let us consider first a Michelson interferometer being used to study light of amplitude and a single wavenumber k The signal is split into two equal p...View the full answer
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