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# Equation of sound wave in air is given by Delta P = 0.02 sin[300t - (9.0)x]. Find the speed of sound in air.

Equation of sound wave in air is given by . Find the speed of sound in air.

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$\Delta p = \Delta p_{max} sin \left [ \omega \left ( t - \frac{x}{v} \right ) \right ]$

$\omega = 3000$

$\gamma = \frac{\omega }{x} = \frac{3000}{9} = \frac{1000}{3} m/s$

Pressure Waves -

$\Delta P= -\Delta P_{max}\cdot \cos \left ( Kx-\omega t \right )$

- wherein

$\Delta P_{max}$ = Maximum variation in pressure

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