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Question 117

Which row correctly describes ultrasound and infrasound?

UltrasoundInfrasound
Ahas a frequency greater than 20 000 Hz20\ 000\text{ Hz}20 000 Hzhas a speed in air of about 330 m/s
Bhas a frequency less than 20 Hzhas a speed in air of about 330 m/s
Chas a speed in air of about 1500 m/shas a frequency less than 20 Hz
Dhas a speed in air of about 330 m/shas a frequency greater than 20 000 Hz20\ 000\text{ Hz}20 000 Hz
A

Row A

B

Row B

C

Row C

D

Row D

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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