In a double-slit experiment, light of wavelength 400 nm passes through slits 0.2 mm apart. The screen is 2 m away. What is the spacing between adjacent bright fringes?
Answer and explanation
Correct answer: A. 4 mm
- Step 1: .
- Step 2: m mm.
Answer
4 mm.
Why not the others: 4000 mm: a unit conversion error of .
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