The distance between a compression and next refraction of sound wave in 12.5 cm. If the sound waves can travel 750 m in 3 sec, the find the number of waves produced in one second.

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Solution

Speed = 750 m/3s = 150 m/s
if one wavelenght = 12.5 cm
Then by the formula,
Speed = Wavelength $\times$ Frequency
1500 = 12.5 $\times F$
F = $\frac{1500}{12.5}$
= 1200 HZ

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The distance between a compression and next refraction of sound wave in 12.5 cm. If the sound waves can travel 750 m in 3 sec, the find the number of waves produced in one second.

Speed = 750 m/3s = 150 m/sif one wavelenght = 12.5 cm Then by the formula,Speed = Wavelength × Frequency1500 = 12.5 ×FF = 150012.5 = 1200 HZ

Speed = 750 m/3s = 150 m/s
if one wavelenght = 12.5 cm
Then by the formula,
Speed = Wavelength $\times$ Frequency
1500 = 12.5 $\times F$
F = $\frac{1500}{12.5}$
= 1200 HZ