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प्रश्न
Numerical problems:
A Sound wave travels at a speed of 344 ms-1. If the wavelength is 1.5 cm, what is the frequency of the Wave? Will it be audible?
थोडक्यात उत्तर
उत्तर
Velocity of sound , v = 344ms-1
The wavelength of sound. λ = 1.5cm
Frequency of the sound υ = `"Velocity"/"wavelength " = (344"ms"^-1)/ (1.5"cm")`
υ = `(344"ms"^-1)/ (0.0015"m")`= 22933 Hz.
Audible frequency range = 20 – 20000Hz
So frequency 2,29,333 is not audible.
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