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Physics (AS & A Level) · Oct / Nov 2019 · Paper 13 · Question 22

9702Transverse and longitudinal waves

The graph represents a sound wave. Which statement is correct?

  1. AThe wave is longitudinal and has a period of 25 ms.
  2. BThe wave is longitudinal and has a frequency of 50 Hz.
  3. CThe wave is transverse and has an amplitude of 3 µm.
  4. DThe wave is transverse and has a wavelength of 20 ms.

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Correct answer: B. The wave is longitudinal and has a frequency of 50 Hz.

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