Diffraction is most noticeable when the gap width is:

  1. zero
  2. much larger than the wavelength
  3. about the same as the wavelength
  4. infinitely large
Answer

C) about the same as the wavelength

Significant spreading. SLO P-11-D-13 · Understanding

Physics MCQ · More Superposition, Stationary Waves and Beats MCQs · Practise