Home
Class 11
PHYSICS
A stationary source emits sound of frequ...

A stationary source emits sound of frequency
`upsilon=1200Hz`. If a wind blows at the speed of 0.1c deduce (i) the percentage change in the wavelength and (ii) the change in the frequency for a stationary observer on the wind side of the source. What happens when there is no wind, but the observer moves at speed 0.1c towards the source?

Promotional Banner

Topper's Solved these Questions

  • OSCILLATIONS AND WAVES

    PRADEEP|Exercise Multiple Choice Question-I|21 Videos

  • OSCILLATIONS AND WAVES

    PRADEEP|Exercise Multiple Choice Question-II|14 Videos

  • OSCILLATIONS AND WAVES

    PRADEEP|Exercise Fill In The Blanks|20 Videos

  • MATHEMATICAL TOOLS

    PRADEEP|Exercise Fill in the blanks|5 Videos

  • PHYSICAL WORLD AND MEASUREMENT

    PRADEEP|Exercise Competiton Focus Jee Medical Entrance|18 Videos

Similar Questions

Explore conceptually related problems

A stationary source emits sound of frequency 1200 Hz. If would blows at the speed of 0.1 v. deduce (a) The change in the frequency for a stationary observer on the wind side of the source (b) Report the calculations for the case when there is no wind but the observer moves at 0.1 v speed towards the source (Given : velocity of sound = v)

When a source of sound moves towards a stationary observer the pitch of sound will appear to

A source of frequency 1 kHz is moving towards a stationary observer with velocity of 0.9 times that of sound. What is the frequency heard by the observer ?

Show that when the speed of the source and the observer are small compared to the speed of sound in the medium, the change in frequency becomes independent of the fact whether the source is moving or the observer.

A source emitting sound of frequency 1000 Hz is moving towards an observer at speed v_s = 0.90 v , (where v is the velocity of sound). What frequency III will be heard by the observer ?

when a source of sound of frequency f crosses stationary observer with a speed v_(s) (lt lt speed of sound v) , the apparent change in frequency Dealtaf is given by

When the source is moving towards the stationary observer, the apparent frequency is given by

PRADEEP-OSCILLATIONS AND WAVES-PROBLEMS FOR PRACTICE
  1. Consider a source moving towards an observer at the speed of upsilon(s...

    Text Solution

    |

  2. A railway engine and a car are moving on parallel tracks in opposite d...

    Text Solution

    |

  3. The whistle of an engine moving at 30km//h is heard by a motorist driv...

    Text Solution

    |

  4. A car passing a check post gives sound of frequency 1000 c.p.s. If the...

    Text Solution

    |

  5. An engine moving with a velocity of 36 km // hour blows a whistle whic...

    Text Solution

    |

  6. Two aeroplanes are approaching eachother and their velocities are 100 ...

    Text Solution

    |

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

    Text Solution

    |

  8. A man is standing on a railway platform listening to the whistle of an...

    Text Solution

    |

  9. Two tuning fork A and B give 5 beats // sec. A resounds with a closed ...

    Text Solution

    |

  10. A wire having a linear mass density of 5.0xx10^(-3)kgm^(-1) is stretch...

    Text Solution

    |

  11. In an experiment, it was found that a tuning fork and a sonometer a so...

    Text Solution

    |

  12. The string of a violing emits a note of 440Hz at its correct tension. ...

    Text Solution

    |

  13. Two sitar strings A and B playing the note 'Ga' are slightly out of tu...

    Text Solution

    |

  14. The zero level of intensity of a sound is 10^(-16) wat t //cm^(2). Cal...

    Text Solution

    |

  15. The intensity level of a sound of intensity of 10^(-12)wat t//cm^(2) i...

    Text Solution

    |

  16. The average power transmitted through a given point on a string suppor...

    Text Solution

    |

  17. A hall has a volume of 10000 m^(3). Its total absorption is equivalent...

    Text Solution

    |

  18. The pressure amplitude in a sound wve from a radio receiver is 2.0xx10...

    Text Solution

    |

  19. Bullets are fires at regulart intervals of 10sec. from an armoured car...

    Text Solution

    |

  20. Two factories are sounding their sirens at 800 Hz. A man goes from one...

    Text Solution

    |