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Question 43

Sound waves with a frequency greater than the upper limit of human hearing are classified as ultrasound. What is the approximate minimum frequency of ultrasound?

A

20 Hz20\text{ Hz}20 Hz

B

200 Hz200\text{ Hz}200 Hz

C

2 000 Hz2\,000\text{ Hz}2000 Hz

D

20 000 Hz20\,000\text{ Hz}20000 Hz

Markscheme

Sound Questions

  1. IGCSE
  2. /Physics
  3. /Sound

295 exam-style questions on CIE IGCSE Physics Sound, covering Sound. Each one has a worked solution and a mark scheme showing where the marks go.

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