A-LevelPhysicsWavesOct/Nov 2024Paper 1 Q291 Mark

An electromagnetic wave is diffracted as it passes through a single slit. The width of the slit is larger than the wavelength of the wave. Which change will decrease the amount of diffraction of the wave?

Q: What topic does this question test?

This question tests Waves in A-Level Physics (syllabus code 9702). It is worth 1 mark.

ADecrease the frequency of the wave.

BDecrease the time period of the wave.

CDecrease the width of the slit.

DIncrease the wavelength of the wave.

✓ Correct Answer

The correct answer is B: Decrease the time period of the wave.

📋 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...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This A-Level Physics Question

Topic

This multiple-choice question tests Waves in A-Level Physics (syllabus code 9702). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Physics Oct/Nov 2024 examination, Paper 1 Variant 2.

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