Fraunhofer Diffraction Due to a Single Slit



  • Single slit Fraunhofer diffraction (elementary explanation only)
  • Formulae based comparison between secondary maxima and minima
  • Diffraction at a single slit: experimental setup, diagram, diffraction pattern, obtain an expression for the position of minima, a sinθn = nλ, where n = 1, 2, 3 … and conditions for secondary maxima, asinθn = (n + ½)λ.
  • Distribution of intensity with angular distance
  • Diffraction at plane grating
  • Diffraction due to circular aperture
  • Comparison between interference and diffraction
  • Fresnel distance
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