If a sound wave covers a distance of 1.8 km in just 6 seconds and in this distance, there are 9000 compressions (high pressure region) made. What is the frequency of the sound wave?
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Answer:
distance = 1.8 km = 1800m
time =6 s
cycles = 9000
velocity = d/t =1800/ 6 =300m/s
we have n= no . of cycles /t = 9000/6 =1500Hz
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