Under which condition is diffraction of a wave most noticeable?
Answer and explanation
Correct answer: D. When the size of the opening is comparable to the wavelength
- Step 1: Diffraction is the spreading of a wave past an obstacle or slit. Step 2. It is strongest when the opening and the wavelength have similar size. Answer: comparable size. Why not the others: a very large opening barely spreads the wave, and every wave has a frequency.
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