Compute the speed of sound in air at 25 C how long will this sound wave take to reach 1.5 km?
Given:
Formula:
Solution:
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Compute the speed of sound in air at 25 C how long will this sound wave take to reach 1.5 km?
Given:
Formula:
Solution:
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Explanation:
Velocity of sound wave v=339 ms
−1
Wavelength of the waves λ=1.5 cm =0.015 m
∴ Frequency of the waves ν=
λ
v
=
0.015
339
=22.6 kHz
Audible frequency range for human ear lies between 20 Hz to 20 kHz
Thus this waves is not audible.