Waves in air, fluids and solids

EasyMedium
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Question 33
Medium
a.

Which of the following statements about sound waves in air and radio waves is correct?

  • Sound waves and radio waves are both transverse.
  • Sound waves and radio waves are both longitudinal.
  • Sound waves are transverse and radio waves are longitudinal.
  • Sound waves are longitudinal and radio waves are transverse.
[1]
b.

A microphone connected to an oscilloscope records the pressure vibrations of a sound wave. The figure below shows the displacement-time graph of the sound wave.

Sound wave trace

Calculate the frequency of the wave shown in the trace.

[2]
c.

Write down the equation which links wave speed, frequency, and wavelength.

[1]
d.

The sound wave is travelling through dry air at a speed of 340 m/s340\text{ m/s}340 m/s.

Calculate the wavelength of this wave.

[2]

Waves in air, fluids and solids Questions

  1. GCSE
  2. /Physics
  3. /Waves in air, fluids and solids