Question

the speed of sound in air is 340 m/s. If the wavelength is 2.4cm , what will be the frequency of sound wave

Answer 1

Velocity(v )= 340 m/s

Wavelength = 2.4cm= 0.024 m

Velocity (v) = Frequency × wavelength

Therefore,

Frequency= Velocity/ Wavelength

Frequency. = 340/0.024

= 14166.66 hz

Answer 2

Given :

The speed of sound in air , v = 340 m/s .

Wavelength , $\lambda=2.4 \ cm =0.024\ m$ .

To Find :

The frequency of sound wave .

Solution :

We know , frequency is given by :

$f=\dfrac{v}{\lambda}\\\\f=\dfrac{340\ m/s}{0.024\ m}\\\\f=14166.67\ hz$

Therefore , the frequency of sound wave is 14166.67 Hz .

Learn More :

Sound Waves

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