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A person riding on a merry go round emit...

A person riding on a merry go round emits a sound wave of a certain frequency Does a person at the centre observe the Doppler effect?

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No, because the source moves at right angles to the line joining the source and the observer.
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Knowledge Check

  • Which frequency produces a sound that can be heard by a person?

    A
    100 kHz
    B
    40 kHz
    C
    2 kHz
    D
    30 kHz

  • A person hears lounder sound at a point in a stationary wave at

    A
    Node
    B
    Antinode
    C
    Midway between node and antinode
    D
    Neither node nor the antinode

  • Towards a stationary object, a train is moving with a speed of 300 m/s and emits a sound wave of frequency 2000 Hz. Small percentage of the sound is reflected back to train in the form of echo. The frequency of the echo as detected by a person sitting in the train will be (speed of sound is 340 m/s).

    A
    31000 Hz
    B
    35000 Hz
    C
    32000 Hz
    D
    45000 Hz
    • CENGAGE PHYSICS-SOUND WAVES AND DOPPLER EFFECT-Exercise 6.2
    1. A person riding on a merry go round emits a sound wave of a certain fr...

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    2. Does the Doppler effect increase the intensity of wave when its source...

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

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

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

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

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    7. A source of sound of frequency 1000 Hz moves to the right with a speef...

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

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    9. A stationary observer receives sound waves from tow tuning forks, one ...

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

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

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    12. A whitle of frequency 540 Hz rotates in a horizontal circle of radius ...

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

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

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    15. A whistle emitting a sound of frequency 440 h(z) is tied to a string o...

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    16. A siren emitting a sound of frequency 2000 Hz moves away from you towa...

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    17. A railroad train is travelling at 30 m/s in still air. The frequency o...

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

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

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    20. Does the Doppler effect increase the intensity of wave when its source...

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