Question 14 — The graphical representation of two - Questions at the end of the chapter - Chapter 10 - Sound Waves: Characteristics and Application (Exploration

Last updated at July 3, 2026 by

Question 14
The graphical representation of two sound waves A and B propagating at the same speed of 345 m s⁻¹ is shown in Fig. 10.33. What is the wavelength of each of them? Also, calculate their frequencies.
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  • Read each wavelength from Fig. 10.33 (crest-to-crest), then use \(\nu=\dfrac{v}{\lambda}\) with \(v=345\ \text{m/s}\).
  • The wave with the shorter wavelength (A) has the higher frequency; the longer one (B) the lower frequency.
Two Waves A and B Read each wavelength from the graph Use nu = v / lambda with v = 345 Shorter wavelength gives higher frequency
Back to: 10.6.1 Wavelength, frequency and time period
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