Question 13 — The variation of density of - Questions at the end of the chapter - Chapter 10 - Sound Waves: Characteristics and Application (Exploration

Last updated at July 3, 2026 by

Question 13
The variation of density of medium for a sound wave propagating with a speed of 340 m s⁻¹ is shown in Fig. 10.32. Calculate the wavelength and frequency of the sound wave.
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  • From Fig. 10.32 the wavelength (one full compression-to-compression) is \(\lambda=8\ \text{cm}=0.08\ \text{m}\).
  • Frequency \(\nu=\dfrac{v}{\lambda}=\dfrac{340}{0.08}=\mathbf{4250\ \text{Hz}}\).
Wavelength and Frequency Wavelength = 8 cm = 0.08 m nu = v / lambda = 340 / 0.08 Frequency = 4250 Hz
Back to: 10.6.1 Wavelength, frequency and time period
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