Answer:
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
