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Single slit width change, how would fringes differ?

  1. Jun 4, 2013 #1
    just to be clear, this is single slit diffraction of light

    if the slit width is made narrower, this would lead to more diffraction, so the fringe width would be wider, yeah?

    but I'm a bit confused, because is this basically the same as saying the fringe separation would be wider?
     
  2. jcsd
  3. Jun 4, 2013 #2

    mfb

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    Right
    And that is right, too. Where is the problem?
     
  4. Jun 4, 2013 #3
    slightly different from my original question, but what if I had a double slit

    and I wanted to compared the difference between two wavelengths of light

    would the longer wavelength of light produce wider maximas and have greater separations between them?
     
  5. Jun 5, 2013 #4

    mfb

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    Sure.
     
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