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The frequency of a sound wave is 20 hz. Find its time period . If the velocity of sound in air is 330 ms-1,find its wavelength

The frequency of a sound wave is 20 hz. Find its time period . If the velocity of sound in air is 330 ms-1,find its wavelength

Grade:11

2 Answers

SAHIL
3778 Points
7 years ago
Frequency = 20 Hz
we know that,
frequency = 1/time period
time period = 1/frequency
time period = 1/20
time period = 0.05 seconds

Velocity = frequency * wavelength
330 = 20*wavelength
wavelength = 330/20
wavelength = 16.5 m
so the wavelength is 16.5 metres

thanks dear
please let me know if still some doubt is there
Priyansh banduni
15 Points
5 years ago
 a body is vibrating 6000 times in 1 minute if the velocity of sound in air iis 360 m/s find the frecuncy of vibrating and wavelenth of wave produce
 

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