Interference of Light Waves and Young’s Experiment



  • Young's Double Slit Experiment and Expression for Fringe Width or Young’s Experiment
  • Young's double-slit experiment: set up, diagram, geometrical deduction of path difference ∆x = dsinθ, between waves from the two slits
  • Using ∆x = nλ for bright fringe and ∆x = (n + ½)λ for dark fringe and sin θ = tan θ = yn/D as y and θ are small, obtain yn = (D/d)nλ and fringe width β = (D/d)λ.
  • Graph of distribution of intensity with angular distance.
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