A-LevelPhysicsSuperpositionOct/Nov 2013Paper 1 Q291 Mark
A student connects two loudspeakers to a signal generator. [Figure 29.1] As the student walks from P to Q, he notices that the loudness of the sound rises and falls repeatedly. What causes the loudness of the sound to vary?
Adiffraction of the sound waves
Binterference of the sound waves
Cpolarisation of the sound waves
Dreflection of the sound waves
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of superposition 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...
🔒
Unlock the Examiner's Answer
Sign up for free to reveal the correct answer, the official mark scheme breakdown, and the examiner trap analysis for this question.
Sign Up Free to Unlock →Join thousands of Cambridge students already using Oracle Prep