A-LevelPhysicsWavesMay/June 2021Paper 1 Q271 Mark
Which diagram best shows how water waves diffract when they pass through a gap in a barrier?
ADiagram A showing plane waves encountering a gap, with minimal diffraction
BDiagram B showing plane waves encountering a gap, with significant diffraction into circular waves
CDiagram C showing circular waves encountering a gap, continuing as circular waves
DDiagram D showing plane waves encountering a gap, continuing as plane waves
✓ Correct Answer
The correct answer is B. 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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