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Wave length of sound

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What is the wavelength of a 2,000-kHz sound wave (a) in air, (B) in helium, and (c) in water?

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Solution Summary

The problem has been solved using the relation between velocity, frequency and wave length.

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SOLUTION
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a) Velocity of sound in a liquid is given by the equation : V = √K/ρ ........(1)
where K = Bulk modulus of elasticity of the liquid and ρ is the density.
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b) Velocity of sound in a gas is given by the equation : V = √γP/ρ .......(2)

where P = Pressure,
ρ = Density
γ = Ratio of the specific heats of the gas at constant pressure and constant volume ...

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