Velocity of Sound Waves

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Velocity of Sound Waves: Overview

This Topic covers sub-topics such as Wave Velocity, Particle Velocity and, Variation of Speed of Sound With Density of Air

Important Questions on Velocity of Sound Waves

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The velocity with which the particles of the medium vibrate in order to transfer the energy in the form of a _____ is called particle velocity.

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Wave velocity is the velocity with which particles vibrate during the propagation of a wave.

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If a sound wave travels with a frequency of 1.25 × 104 Hz at 344 m s-1, the wavelength will be -

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Two observers are stationed in two boats 4.5 km apart. After how many seconds a sound signal sent by one, under water, reaches the other? (The speed of sound in the water is 1500 m s-1).

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The velocity of sound in a gas is inversely proportional to the square root of the _____ of the gas.

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What will be the wavelength (in meters) of sound having 1655 Hz as its frequency, when it travels with a speed of 331 m s-1? (Answer upto one decimal place).

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The density of the gas does not affect the speed of sound in the gas.

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Suppose that a sound wave and a light wave have the same frequency, then their wavelengths will be the same.

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The velocity of sound in air at a particular temperature is 330 m s-1. What will be its value when temperature is doubled and the pressure is halved?

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Velocity of sound in a gaseous medium is 330 ms. If the pressure is increased by 4 times without causing a change in the temperature, the velocity of sound in the gas is:

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What are the factors that affect the speed of sound in gases?

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Suppose that a sound wave and a light wave have the same frequency, then which one has a longer wavelength?

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The thunder of cloud is heard 9.8 seconds later than the flash of lightning. If the speed of sound in air is 330 m s-1, what will be the height of cloud in metres?

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A sound wave has a frequency of 200 Hz and a speed of 400 m s-1 in a medium. Find the wavelength of the sound wave in metres.

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Air temperature in the Rajasthan desert can reach 46°C. What is the velocity of sound (in m s-1) in air at that temperature? (Take Vo = 331 m s-1 and answer upto two decimal places). 

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The frequency of a tuning fork is 256 Hz and velocity of sound in air is 350 m/s. Find the distance covered by the wave when the fork completes 16 vibrations. (Answer upto three decimal places). 

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Suppose that a sound wave and a light wave have the same frequency, then which one has a longer wavelength?

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If a sound wave travels with a frequency of 1.25 × 104 Hz at 344 m s-1, the wavelength will be _____.