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Homework Help: Multiple-Slit Interference (Again)

  1. Feb 25, 2009 #1
    1. The problem statement, all variables and given/known data

    Consider the original double slit pattern from problem 1. Suppose that a third slit with the same width were added halfway between the original two slits. So that d goes from being 1 to being 0.5 for both.
    Would point Z be a principal maximum, minimum, or neither?

    2. Relevant equations

    I don't need any questions, I just need to know what happens to the pattern once a slit is added in between the two. I know that the minimums will change, so that there is a brighter spot in the middle of each line, and I think that the width of each will double (since you are halving the distance between them)
    But I am not sure?

    3. The attempt at a solution
    Last edited: Feb 25, 2009
  2. jcsd
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