A-LevelPhysicsSuperpositionFeb/Mar 2020Paper 1 Q261 Mark
A musical instrument is made using a long tube with a mouthpiece at one end. The other end is open and flared, as shown. [Figure showing a tube with a mouthpiece at one end (closed end) and an open, flared end] A musician maintains stationary sound waves with a node at the mouthpiece and an antinode at the other end. The lowest frequency of sound that the instrument can produce is 92 Hz. Which different frequencies of sound can be produced by the instrument?
A92 Hz, 138 Hz, 184 Hz, 230 Hz
B92 Hz, 184 Hz, 276 Hz, 368 Hz
C92 Hz, 276 Hz, 460 Hz, 644 Hz
D92 Hz, 276 Hz, 828 Hz, 1288 Hz
✓ Correct Answer
The correct answer is C. 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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