Question
Fri January 18, 2013 By:
 

an aeroplane produces a sound wave with frequency of 5khz and wavelength 30m.in how much time would the sound wave covers the distance of 4km.

Expert Reply
Sun January 20, 2013

speed = wavelength * frequency

= 30*5000=150000 m/s

so speed of sound wave is 150 Km/s

time to cover 4 Km is = 4/150 =0.026 seconds

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