A-LevelPhysicsWaves9702/12 · Feb/Mar 2021 · Q271 Mark
A water wave is diffracted as it passes through a gap between two barriers in a ripple tank. The wave is observed to 'spread out' as it moves through the gap. Which two factors both affect the amount of diffraction observed?
Athe amplitude and frequency of the incident wave
Bthe amplitude of the incident wave and the width of the gap
Cthe wavelength and amplitude of the incident wave
Dthe wavelength of the incident wave and the width of the gap
✓ Correct answer
D: the wavelength of the incident wave and the width of the gap
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