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A whistle emitting a sound of frequency `440 H`z is tied to string of `1.5 m` length and rotated with an angular velocity of `20 rad//sec` in the horizontal plane. Then the range of frequencies heard by an observer stationed at a large distance from the whistle will `(v=330 m//s)`

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`v_S=romega=1.5xx20=30(m)/(s)`
`n_(min)=(v)/(v+v_S)n=(330)/(330+30)xx440Hz=403Hz`
`n_(max)=(330)/(330-30)xx440=484Hz`
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CENGAGE PHYSICS-SOUND WAVES AND DOPPLER EFFECT-Exercise 6.2
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  5. A railroad train is travelling at 30 m/s in still air. The frequency o...

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  6. Two tuning forks A and B having a frequency of 500 Hz each are placed ...

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  7. A person riding on a merry go round emits a sound wave of a certain fr...

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  9. The Doppler effect is a wave characteristic. Light and sound are both ...

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  10. Is there a Doppler effect in the case of sound when the observer or th...

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  11. A source moves away from an obeserver with a certain speed, and the ra...

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  12. An engine blowing a whistle of frequency 133 Hz moves with a velocity ...

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  13. A source of sound of frequency 1000 Hz moves to the right with a speed...

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  14. A stationary source emits sound of frequency upsilon=1200Hz. If a wi...

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  15. A stationary observer receives sound waves from two tuning forks, one ...

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  16. A stationary source sends forth monochromatic sound. A wall approaches...

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  17. A source of sonic oscillations with frequency v(0)=100Hz moves at righ...

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  18. A whistle of frequency 540 Hz rotates in a horizontal circle of radius...

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  19. A bat flies perpendicularly towards a wall with a speed of 6 m/s, emit...

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  20. The ratio of the apparent frequencies of a car when approaching and re...

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