Which of the following statement is incorrect?

Change in pressure have no effect on the speed of sound

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The speed of sound in water is higher than in air

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Changes in temperature have no effect on the speed of sound

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Frequency of sound wave does not change while travelling in different medium

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Solution

The correct option is C Changes in temperature have no effect on the speed of sound
Speed of sound $V = \sqrt{\frac{γ P}{ρ}} = \sqrt{\frac{γ R T}{M}}$
$V \propto \sqrt{T}$ and $V$ is independent of $P$ for constant $T$ .
As the wave travels from one medium to another, frequency remains constant. Denser the medium, greater is the speed of sound.

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Similar questions

Fill in the following blanks with suitable words :

(a) Sound is caused by ______.

(b) A sound wave consists of places of higher pressure called ______ and places of ______ pressure called ______ .

(d) Sound cannot travel through ______ .

(e) The speed of sound in a solid is ______ than the speed of sound in air.

(f) When the frequency of the sound is increased, the wavelength ______ .

What is the effect of increase of pressure on speed of sound in air.

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