A-LevelPhysicsWavesFeb/Mar 2021Paper 1 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
The correct answer is D. This question tests the candidate's understanding of waves within the Physicssyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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