Home
Class 11
PHYSICS
The difference between the apparent freq...

The difference between the apparent frequency of a source of sound as perceived by an observer during its approach and recession is 2% of the natural frequency of the source. Then the speed of the source will be

A

`12m//s`

B

`6.2m//s`

C

`3.4m//s`

D

`1.5m//s`

Text Solution

Verified by Experts

The correct Answer is:
C
`Deltan~~(2nV_(S))/(V)implies(Deltan)/(n)~~(2V_(S))/(V)`
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

The difference between the apparent frequency of a sound of soun as perceived by an observer during its approach and recession is 2% of the natural frequency of the source. If the velocity of sound in air is 300m//s , the velocity of the source is (It is given that velocity of source ltlt velocity of sound )

A source of sound attached to the bob of a simple pendulum execute SHM the difference between the apparent frequency of sound as received by an observer during its approach and recession at the mean position of the SHM motion is 2% of the natural frequency of the source the velocity of the source at the mean position is (velocity of sound in the air is 340m//s ) [Assume velocity of sound source lele velocity of sound in air]

The difference between the apparent frequencies of whistle as received by an observe in rest during approach to recession of the train is 1% . If velocity of sound is 320 m/sec, the velocity of the train is

The apparent change in frequency of a sounding source and observer in relative motion is

At what speed should a source of sound move so that stationary observer finds the apparent frequency equal to half of the original frequency

A listener and a source of sound are moving with the same speed in the same direction. The ratio of the frequency of the source and the frequency which is heard by the listerner is

NARAYNA-WAVES-Exercise-I (C.W)
  1. An engine giving whistle is moving towards a stationary observer with ...

    Text Solution

    |

  2. Two aeroplanes 'A' and 'B' are moving away from one another with a spe...

    Text Solution

    |

  3. An engine is moving on a circular path of radius 100 m with a speed of...

    Text Solution

    |

  4. The frequency of a radar is 780 MHz. After getting reflected from an a...

    Text Solution

    |

  5. An observer moves towards a stationary source of sound, with a veloci...

    Text Solution

    |

  6. A train is moving at 30 m//s in still air. The frequency of the locomo...

    Text Solution

    |

  7. A vehicle, with a horn of frequency n is moving with a velocity of 30 ...

    Text Solution

    |

  8. A source of sound is travelling towards a stationary observer. The fre...

    Text Solution

    |

  9. A truck blowing horn of frequency 500Hz travels towards a vertical mou...

    Text Solution

    |

  10. One train is approaching an observer at rest and another train is rece...

    Text Solution

    |

  11. A tuning fork of frequency 328Hz is moved towards a wall at a speed of...

    Text Solution

    |

  12. The frequency of the sound of a car horn as recorded by an observer to...

    Text Solution

    |

  13. Two trains are approaching each other on parallel tracks with same vel...

    Text Solution

    |

  14. A girl swings in a cardle with period pi//4 second and amplitude 2m. A...

    Text Solution

    |

  15. The difference between the apparent frequency of a source of sound as ...

    Text Solution

    |

  16. Two different sound sources S(1) and S(2) have frequencies in the rati...

    Text Solution

    |

  17. A stationary source emitting sound of frequency 680Hz is at the origin...

    Text Solution

    |

  18. A source S emitting sound of frequency 300Hz is fixed on block A which...

    Text Solution

    |

  19. An observer is standing 500 m away from a vertical hill. Starting betw...

    Text Solution

    |

  20. A star is moving away from the earth with a velocity of 10^(5) m/sec. ...

    Text Solution

    |