In a double-slit experiment the slit separation is 0.20 mm, the screen is 2.0 m from the slits and the wavelength is 600 nm. What is the fringe spacing?

Answer and explanation

Correct answer: C. 6.0 mm

  1. Step 1: Fringe spacing .
  2. Step 2: m mm.
Answer
6.0 mm.
Why not the others: 1.2 mm: the slit separation was entered as 1 mm. 60 mm: the slit separation was entered as 0.02 mm. 12 mm: the slit separation was entered as 0.1 mm.

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