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Homework Help: Double Slits experiment

  1. Mar 8, 2012 #1
    1. The problem statement, all variables and given/known data
    In a double slits experiment, the intensity at the central fringe is I. What will be the intensity at the central fringe when each slit is widened 2 times?

    2. Relevant equations

    3. The attempt at a solution

    My suggestion is that the intensity will be 2I...
  2. jcsd
  3. Mar 9, 2012 #2

    Simon Bridge

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    But what is the reasoning?
    What is the relationship between the central fringe intensity and the slit width?
  4. Mar 9, 2012 #3
    I think that when the width of the each slit is doubled then the amount of light passing through will be double as well as the intensity
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