If the wavelength of light used in a diffraction experiment is halved, what happ

Practice Questions

Q1
If the wavelength of light used in a diffraction experiment is halved, what happens to the position of the minima?
  1. They move closer together
  2. They move further apart
  3. They remain unchanged
  4. They disappear

Questions & Step-by-Step Solutions

If the wavelength of light used in a diffraction experiment is halved, what happens to the position of the minima?
Correct Answer: Minima move closer together.
  • Step 1: Understand what a diffraction experiment is. It involves light passing through a narrow opening and creating a pattern of light and dark areas called minima and maxima.
  • Step 2: Know that the wavelength of light is the distance between two consecutive peaks of the light wave.
  • Step 3: Recognize that the position of the minima in a diffraction pattern is related to the wavelength of the light used.
  • Step 4: Remember that if the wavelength is halved, it means the distance between the peaks of the light wave is shorter.
  • Step 5: Understand that when the wavelength decreases, the angle at which the minima occur also decreases, causing the minima to move closer together.
  • Step 6: Conclude that halving the wavelength results in the minima being closer together in the diffraction pattern.
  • Diffraction and Wavelength Relationship – The relationship between wavelength and the position of minima in a diffraction pattern, where a shorter wavelength results in closer minima.
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