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Cambridge IGCSE Physics practice

What frequency range is classified as ultrasound?

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MCQ

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cambridge_mcq

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Topic

Sound

Exam-style question

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What frequency range is classified as ultrasound?.

  1. A.Below 20 kHz
  2. B.20 kHz to 100 kHz
  3. C.Above 20 kHz
  4. D.100 kHz to 1 MHz

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Description

Ultrasound Frequencies

Ultrasound refers to sound waves that have frequencies above 20 kHz. These waves are used in medical imaging and industrial applications.

  1. a

    State the frequency range that defines ultrasound.

    Aim for approximately 1 distinct marking point.

    [1]