1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Width of single slit diffraction

  1. Apr 11, 2013 #1
    1. The problem statement, all variables and given/known data

    2z6wohs.png

    2. Relevant equations



    3. The attempt at a solution

    Part(a)
    Diffraction is the bending of light about an aperture. To be able to resolve two distinct images, the minimum angle must satisfy the rayleigh criterion. Any angle smaller will hence affect the quality of images.

    (b) Proven by integration.

    1vgk.png

    (c) For observable diffraction, firstly w must be in the same order of magnitude as λ. Secondly, using w*sinθ = nλ, in order to get the first maxima to be 30o, w must be 2λ etc....

    (d) since w*sinθ = nλ, the higher wavelengths of light get spread out more than the lower wavelengths. But the central maxima will be a combination of all colors. At certain angles some wavelengths of light overlap where niλi = njλj, i≠j.
     
  2. jcsd
  3. Apr 12, 2013 #2
  4. Apr 15, 2013 #3
    bumppp
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Width of single slit diffraction
Loading...