Physics 9702 · AS & A Level · Interference

Interference — practice question

Light of one frequency from two coherent sources produces alternating bright and dark fringes on a screen by interference. Which change would give a greater fringe separation?

  • Aincreasing the distance between the sources and the screen
  • Bincreasing the distance between the two sources
  • Cincreasing the frequency of the light
  • Dincreasing the intensity of the light

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