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4 Waves

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Question 51
F

A loudspeaker produces a sound wave with a frequency of 850 Hz.

The speed of sound in air is 340 m/s.

a.

Calculate the wavelength of the sound wave in air.

[3]
b.

The sound wave passes from the air into the water of a swimming pool. The speed of sound in water is 1500 m/s.

Give the frequency of the sound wave in the water.

[1]
c.

Calculate the wavelength of the sound wave in the water.

[2]
d.

Explain why the wavelength of the sound wave in the water is longer than its wavelength in the air.

[2]
Markscheme

4 Waves Questions

  1. GCSE
  2. /Physics
  3. /4 Waves

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