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Homework Help: Two slit interference pattern

  1. Dec 7, 2008 #1
    http://img504.imageshack.us/img504/3341/img186je6.th.jpg [Broken]

    Above is an image scanned in from my textbook of an interefernce pattern from two slits.

    Am I correct in thinking that the distance between the maxima within the main envelope is found via λ = ws/D , where w = this distance?

    Also, would the minima of the main envelope be found using dsin(theta)= nλ?

    How would should a pattern physically be seen? Would the brighter regions have a series of darker regions within them?

    Last edited by a moderator: May 3, 2017
  2. jcsd
  3. Dec 8, 2008 #2


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    What are d, D, and s?
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