A-LevelPhysicsSuperpositionOct/Nov 2014Paper 1 Q251 Mark
A stationary sound wave is produced in a tube. Which statement describes the wave speed?
AIt is the distance between two adjacent nodes divided by the period of the wave.
BIt is the speed at which energy is transferred from one antinode to an adjacent antinode.
CIt is the speed of a particle at an antinode.
DIt is the speed of one of the progressive waves that are producing the stationary wave.
✓ Correct Answer
The correct answer is D. 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...
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