How much time does a sound wave of frequency 500hertz and wave length 80cm take to travel a distance of 1km also find its wavespeed
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Answer:
2.5 seconds
Explanation:
Wave velocity = wavelength*frequency
wavelength = 80cm = (80/100)m and frequency = 500Hz
=> wave velocity = (80/100)*500
=> wave velocity = 400m/s
Now,
distance = 1km = 1000m
velocity( = speed, in case of one dimensional motion) = 400m/s
Time = ?
Time = distance/average or uniform velocity
=> Time = 1000/400
= 2.5s
Therefore, a wave of frequency 500Hz and wavelength 80cm takes 2.5 seconds to travel a distance of f 1km
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