Embibe Experts Solutions for Chapter: Sound Waves, Exercise 1: Exercise-1

At the same temperature and pressure the densities of two diatomic gases are $d_1$ and $d_2$. The ratio of velocities of sound in these gases will be

$16$ tuning forks are arranged in the order of increasing frequencies. Any two successive forks give $8$ beats per second when sounded together. If the last fork gives the octave of the first, then the frequency of the first fork is-

A tuning fork of frequency $512 \mathrm{Hz}$, is vibrated with a sonometer wire and $6$ beats per second are heard. The beat frequency reduces if the tension in the string is slightly increased. The original frequency of vibration of the string is

A closed organ pipe and an open organ pipe are tuned to the same fundamental frequency. What is the ratio of their lengths?

Two waves of lengths $50 \mathrm{cm}$ and $51 \mathrm{cm}$ produced $12$ beats per second. The velocity of sound is-

To obtain beats, the minimum difference in the frequencies of two sources is:

Two sound waves with wavelengths $5.0 \mathrm{m}$ and $5.5 \mathrm{m}$ respectively, each propagates in gas with velocity $330 \mathrm{m} {\mathrm{s}}^{-1}$. We expect the following number of beats per second:-

A police van moving with velocity $22 \mathrm{m} {\mathrm{s}}^{-1}$and emitting sound of frequency $176 \mathrm{Hz}$, follows a motorcycle Which is moving towards a stationary car and away from the police van. The stationary car is emitting frequency $165 \mathrm{Hz}$. Speed of sound air is $330 \mathrm{m} {\mathrm{s}}^{-1}$. If motorcyclist does not hear any beats, then his velocity is