The sound wavelength in the air for the lowest male voice reaches 4.3 meters

The sound wavelength in the air for the lowest male voice reaches 4.3 meters, and for the highest female voice it is 25 cm. Find the vibration frequencies of these voices.

1) Find out in the reference materials of the textbook the speed of sound in air:

s = 340 m / s.

2) The frequency of sound vibrations is calculated using the following formula:

v = c / λ, where v is the frequency of sound vibrations, c is the speed of sound in air, λ is the length of the sound wave.

3) Find the vibration frequency of the male voice:

v1 = 340 m / s / 4.3 m = 79 Hz.

4) Find the vibration frequency of the female voice:

v2 = 340 m / s / 0.25 m = 1360 Hz.

Answer: 79 Hz, 1360 Hz.