A sourse of sound of constant frequency is moving along a circular path of radius 70/22 m. It makes 60 rev/min.If the velocity of sound in air is 330m/s,then the frequencies of the lowest and the heighest notes heard by an observer in the circular path of radius 5 m is?
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Answer:31/35
Explanation:
Velocity,v=rw=(70/22)×2π×(60/60)=20m/s
Ratio=330-20/330+20
=31/35
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