What happens to the diffraction pattern when the slit width is decreased?

Practice Questions

Q1
What happens to the diffraction pattern when the slit width is decreased?
  1. Pattern becomes wider
  2. Pattern becomes narrower
  3. No change in pattern
  4. Pattern disappears

Questions & Step-by-Step Solutions

What happens to the diffraction pattern when the slit width is decreased?
  • Step 1: Understand what diffraction is. Diffraction is the bending of waves around obstacles or through openings.
  • Step 2: Know that a slit is an opening through which waves (like light) pass.
  • Step 3: Recognize that the width of the slit affects how the waves spread out after passing through it.
  • Step 4: When the slit width is decreased, the waves spread out more after passing through the slit.
  • Step 5: This spreading out of waves increases the angle at which the waves diffract.
  • Step 6: As a result, the diffraction pattern (the pattern of light and dark areas created) becomes wider.
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