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Homework Help: Single slit problems

  1. Oct 30, 2013 #1
    1. The problem statement, all variables and given/known data

    A 0.42 -mm-diameter hole is illuminated by light of wavelength 510nm. What is the width (in mm) of the central maximum on a screen 1.8m behind the slit?

    2. Relevant equations

    f=λx/s

    3. The attempt at a solution

    I tried two answers, 4.4mm and 2.2mm and they are both wrong. Any suggestions?
     
  2. jcsd
  3. Oct 30, 2013 #2

    mfb

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    2017 Award

    Staff: Mentor

    Please show how you got those answers. It is hard to guess what you did wrong otherwise.
     
  4. Oct 31, 2013 #3

    ehild

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    Homework Helper

    It is not the correct formula for a hole. See your other thread.

    ehild
     
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