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4.3 Sound, ultrasound and infrasound

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Question 37
F

A sound wave is transmitted from liquid P into liquid Q. Its frequency is 1.2 kHz1.2\ \mathrm{kHz}1.2 kHz and its wavelength in P is 1.0 m. The speed in Q is 1500 m/s.

Which gives the frequency in Q and the percentage increase in wavelength?

[1]
A

1500 Hz1500\ \mathrm{Hz}1500 Hz and 25%25\%25%

B

1200 Hz1200\ \mathrm{Hz}1200 Hz and 20%20\%20%

C

1200 Hz1200\ \mathrm{Hz}1200 Hz and 25%25\%25%

D

1500 Hz1500\ \mathrm{Hz}1500 Hz and 20%20\%20%

Markscheme

4.3 Sound, ultrasound and infrasound Questions

  1. GCSE
  2. /Physics
  3. /4.3 Sound, ultrasound and infrasound

112 exam-style questions on Edexcel GCSE Physics 4.3 Sound, ultrasound and infrasound, covering 4.3.1 Sound waves, vibrations and the human ear, 4.3.2 Ultrasound and infrasound, 4.3.3 Uses of ultrasound and infrasound, and 4.3.4 Sound waves passing between media. Each one has a worked solution and a mark scheme showing where the marks go.

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