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Is this the right formula to use?

  1. Mar 15, 2007 #1
    1. The problem statement, all variables and given/known data
    Not sure which equation to use?

    600nm light falls on a single slit of width 0.015mm. What is the angular width of the central maximum?

    2. Relevant equations

    [tex]\Delta\theta = 2\left(\frac{\lambda}{slit width}\right)[/tex]

    is that the right equation to use?
    Last edited: Mar 15, 2007
  2. jcsd
  3. Mar 15, 2007 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Looks good to me. But to gain confidence, you should understand how it is derived.
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