V K Sally and R Goel Solutions for Chapter: Sound, Exercise 4: Practice Problems

A sound wave of wavelength $0.664 \mathrm{m}$ is travelling through air at a speed of $332 \mathrm{m} {\mathrm{s}}^{-1}$. What is the frequency of the sound?

The wavelength of ripples produced on the surface of water is $0.14 \mathrm{m}$. If the velocity of the ripples is $42 \mathrm{m}/\mathrm{s}$, calculate the number of ripples produced in one second.

A sound of frequency $220 \mathrm{Hz}$ is travelling at a speed of $440 \mathrm{m} {\mathrm{s}}^{-1}$ in a given medium. Calculate the wavelength of the sound.