In a double-slit experiment, if the wavelength of light is halved, what happens to the fringe width? (2020)

Practice Questions

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In a double-slit experiment, if the wavelength of light is halved, what happens to the fringe width? (2020)
  1. It doubles
  2. It halves
  3. It remains the same
  4. It quadruples

Questions & Step-by-step Solutions

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Q
Q: In a double-slit experiment, if the wavelength of light is halved, what happens to the fringe width? (2020)
Solution: Fringe width (β) is given by β = λD/d. If λ is halved, β will also be halved.
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