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Physics · May / June 2024 · Paper 12 · Question 23

5054Sound

The speed of sound in air is 330 m / s. Which sound is classed as ultrasound?

  1. Aa sound with a wavelength of 250 cm
  2. Ba sound with a wavelength of 25 cm
  3. Ca sound with a wavelength of 2.5 cm
  4. Dnone of the above

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Correct answer: D. none of the above

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