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Homework Help: Double slit experiment

  1. Sep 16, 2013 #1
    1. The problem statement, all variables and given/known data

    I need to derive the intensity distribution of the double slit experiment. Intensity as a function of the slit separation d, the distance to the screen L and the wavelength [itex]\lambda[/itex]. L>>d

    2. Relevant equations

    3. The attempt at a solution

    Ok this is ridiculous but everything I find is just telling me how to find the minimum or maximum. I also need to figure this out for the triple and N slit problems.

    I know that intensity is basically the square of the electric field. So I have been trying to make two waves and then add them together and then square them. I keep going wrong here. Is there an online resource that takes this approach?
  2. jcsd
  3. Sep 16, 2013 #2


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    Staff: Mentor

  4. Sep 16, 2013 #3


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    2017 Award

    Staff: Mentor

    Please show your work then, so we can see what you did and what went wrong. The basic idea is right.
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