Physics 5054 · O Level · Sound

Sound — practice question

Which row gives the correct description of ultrasound?

  • Alongitudinal; less than $20\,\text{kHz}$
  • Blongitudinal; greater than $20\,\text{kHz}$
  • Ctransverse; less than $20\,\text{kHz}$
  • Dtransverse; greater than $20\,\text{kHz}$

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