The distance between cmo[ression adnd next rarefraction of sound wave is 12.5cm . If the sound waves can travel 750m in 3s, find the number of waves produced in one seocnd
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Explanation:
Wave length = 12.5 cm
Speed = Distance / Time
= 750/3 = 250m/sec
Speed = Wavelength * Frequency
250 = 12.5*Frequency
Frequency = 250/12.5
Frequency = 20
No.of waves per second = 20 Hertz Ans.
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