# Speed of sound

#### isabella

does anyone know the equation of speed of sound?

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#### Gokul43201

Staff Emeritus
Gold Member
isabella said:
does anyone know the equation of speed of sound?
Do you realize that this question is so poorly worded that any correct response you recieve must be a result of some fortunate psychological evaluation of what you mean by the question ?

An equation, as you must be aware, relates a bunch of quantities. There may be several equations involving any one chosen quantity. So, if you want to know about the speed of sound, what do you want to relate it to - the spacing between piles of dust in a particular experiment, the wavelength and frequency of a wave, the tension in a guitar string, the pressure of a gas, some material property rather than a wave property or viceversa ?

#### jaap de vries

$$\sqrt{\gamma T R}$$

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