A sound wave travelled at a speed of 342 m/s if the wavelength is 1.5 cm what is the frequency will it be audible
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Answered by
0
Given,
v = 342 m s^(-1)
λ = 1.5 cm
λ = 1.5 × 10^(-2) m
We have, frequency,
ν = v / λ
Then,
ν = 342 / (1.5 × 10^(-2))
ν = 22800 Hz
ν = 22.8 kHz
This frequency is not audible to human since it is greater than 20 kHz. The frequency range of human audible sound is 20 Hz to 20 kHz.
Answered by
1
Wavelength and frequency of a wave are related by the equation velocity = wavelength x frequency.
Explanation:
Wave velocity = 342 m/s
Wavelength = 1.5 cm = 1.5/100 = 0.015 m
f = wave velocity x wavelength
= 342 x 0.015
= 5.13 Hz
audible range of sound ranges from 20 Hz to 20,000 Hz.
this frequency is not audible.
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