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4.3 Sound, ultrasound and infrasound

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Question 30
F

A sound wave passes through three materials, P, Q and R. Its frequency remains constant. Its speed doubles from P to Q, then decreases to one quarter of its value in Q on entering R.

The wavelength in P is 0.80 m. What is the wavelength in R?

[1]
A

0.20 m0.20\ \mathrm{m}0.20 m

B

0.40 m0.40\ \mathrm{m}0.40 m

C

1.60 m1.60\ \mathrm{m}1.60 m

D

6.40 m6.40\ \mathrm{m}6.40 m

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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