A sound wave having wavelength lambda=66 cm is propagating in the air with a velocity v=330 m/s, calculate frequency of the wave?

500 Hz

Explanation:

Wave: A wave is a disturbance that travels through a medium and transfer energy from one point to another, without causing any permanent displacement of the medium itself.

The equation for the velocity of a wave is given as,

v = λf Equation 1

Where v = velocity of sound in air, λ = wavelength, f = frequency.

make f the subject of the equation.

f = v/λ Equation 2

Given: v = 330 m/s, λ = 66 cm = 0.66 m.

Substitute into equation 2

f = 330/0.66

f = 500 Hz.

Hence the frequency of the wave = 500 Hz

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