Physics · May / June 2018 · Paper 12 · Question 31
5054Sound
The diagram shows a loudspeaker that is producing a continuous sound wave of frequency 200 Hz in air. [diagram: loudspeaker with point P] Which diagram best shows how the sound wave causes a molecule at P to move during \frac{1}{200} s?
- A[diagram: P with horizontal double-headed arrow]
- B[diagram: P with horizontal single arrow to the right]
- C[diagram: P with curved wave arrow]
- D[diagram: P with vertical double-headed arrow]
As printed in the paper
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Correct answer: A. [diagram: P with horizontal double-headed arrow]
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