Home
Class 12
PHYSICS
The difference between the apparent freq...

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

`1.5 ms^(-1)`

B

` 12 ms^(-1)`

C

`6 ms^(-1)`

D

`3 ms ^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • WAVE MOTION

    TARGET PUBLICATION|Exercise MCQ 7.1|61 Videos
  • SURFACE TENSION

    TARGET PUBLICATION|Exercise EVALUATION TEST|21 Videos
  • WAVE THEORY OF LIGHT

    TARGET PUBLICATION|Exercise EVALUATION TEST|20 Videos

Similar Questions

Explore conceptually related problems

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 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

An observer moving towards a stationary source observes that the apparent frequency is three times the actual frequency of the source. If the velocity of sound is V, the velocity of the observer would be-

A source is moving towards a stationary observer, so that the apparent frequency increases by 50%. If velocity of sound is 330 m/s, then velocity of source is

An observer moves towards a stationary source of sound of frequency n . The apparent frequency heard by him is 2 n . If the velocity of sound in air is 332 m/sec, then the velocity of the observer is

What should be the velocity of a sound source moving towards a stationary observer so that apparent frequency is double the actual frequency (Velocity of sound is v )

With what velocity should a source of sound move towards a listener so that apparent frequency is twice the actual frequency ? Take velocity of sound in air =330m//s

TARGET PUBLICATION-WAVE MOTION -MCQ 7.1
  1. An engine blowing a whistle of frequency 133 Hz moves with a velocity ...

    Text Solution

    |

  2. A passenger is sitting in a fast moving train The engine of the train...

    Text Solution

    |

  3. A source of sound and a listener both are moving in the same direction...

    Text Solution

    |

  4. If a stationary observer notes a change of 25% in the frequency of a w...

    Text Solution

    |

  5. A train A is travelling at a speed of 108 km hr^(-1) The train appro...

    Text Solution

    |

  6. Two cars are approaching each other with same speed of 20 m//s . A ma...

    Text Solution

    |

  7. An engine is moving on a circular track with a constant speed It .is b...

    Text Solution

    |

  8. An engine driver moving towards a wall with a velocity of 60 m/s emit...

    Text Solution

    |

  9. An object producing a pitch of 600 Hz approaches a stationary person i...

    Text Solution

    |

  10. When both source and listener approach each other with a velocity equa...

    Text Solution

    |

  11. The difference between the apparent frequency of a sound of soun as pe...

    Text Solution

    |

  12. A wave is expressed by the equation y=0.5sinpi(0.01x-3t) where y a...

    Text Solution

    |

  13. Two sources of sound A and B produce the wave of 350 Hz ,they vibrate...

    Text Solution

    |

  14. A tuning fork whose frequency is given by the manufacturer as 512 Hz i...

    Text Solution

    |

  15. Two sounding bodies producing prograssive waves given by y1 =4 sin (4...

    Text Solution

    |

  16. A source of sound emitting a note of frequency 90 Hz moves towards an ...

    Text Solution

    |

  17. A train has just completed a U-curve in a trach which is a semi circle...

    Text Solution

    |

  18. Assertion :on reflection from a rigid boundary (denser medium) there i...

    Text Solution

    |

  19. A sonic source, located in a uniform medium, emits waves of frequency ...

    Text Solution

    |

  20. The well known example of longitudinal wave is

    Text Solution

    |