Home
Class 11
PHYSICS
Explain: if an obeserver places hisear t...

Explain: if an obeserver places hisear to one end of a long iron pipe line, he can distinctly hear two sounds when a work man hammers the other end of the pipeline.

Text Solution

Verified by Experts

Sound travels faster in iron that in air. So there is a difference between the times taken by sound to travel through iron and sir. This is why the observer hears two sounds.
Promotional Banner

Topper's Solved these Questions

  • SOUND WAVES AND DOPPLER EFFECT

    CENGAGE PHYSICS ENGLISH|Exercise Exercise 6.2|72 Videos

  • SOUND WAVES AND DOPPLER EFFECT

    CENGAGE PHYSICS ENGLISH|Exercise Subjective|56 Videos

  • SOUND WAVES AND DOPPLER EFFECT

    CENGAGE PHYSICS ENGLISH|Exercise Examples|56 Videos

  • RIGID BODY DYNAMICS 2

    CENGAGE PHYSICS ENGLISH|Exercise Interger|2 Videos

  • SUPERPOSITION AND STANDING WAVES

    CENGAGE PHYSICS ENGLISH|Exercise Comprehension Type|5 Videos

Similar Questions

Explore conceptually related problems

Explain: if an observer places his ear to one end of a long iron pipe line, he can distinctly hear two sounds when a man hammers the other end of the pipeline.

Two sounds are heard at the end of an iron rod 5 km long at an interval of 14 seconds, when a source of sound is placed at the other end of the rod. The velocity of sound in air is 330 m/s. the velocity of sound in iron is aproximately

"When one person hammers at one end of a metal pipe, ifa listener places his ear at the other end of the pipe, two distinct sounds are heard." Why?.

A person blows into open- end of a long pipe. As a result,a high pressure pulse of air travel down the pipe. When this pulse reaches the other end of the pipe,

A person blows into open- end of a long pipe. As a result,a high pressure pulse of air travel down the pipe. When this pulse reaches the other end of the pipe,

A wooden plank of mass 20kg is resting on a smooth horizontal floor. A man of mass 60kg starts moving from one end of the plank to the other end. The length of the plank is 10m . Find the displacement of the plank over the floor when the man reaches the other end of the plank.

Three infinitely long wires, each carrying a current 1A, are placed such that one end of each wire is at the origin, and, one of these wires is along x-axis, the other along y-axis and the third along z-axis. Magnetic induction at point (-2 m, 0, 0) due to the system of these wires can be expressed as

A log of wood of length l and mass M is floating on the surface of a river perpendicular to the banks. One end of the log touches the banks. A man of mass m standing at the other end walks towards the bank. Calculate the displacement of the log when he reaches nearer end of the log

Four equal electric charges are arranged at the four corners of a square of side 'a'. Out of these four charges, two charges are positive and placed at the ends of one diagonal. The other two charges are positive and placed at the ends of the other diagonal. The energy of the system in

A man of mass m runs without sliding from rest from one end of a boat of mass M and length l with an acceleration a relative to the boat. If the friction between water and boat is neglected find the a. acceleration of CM of the system (M+m) b. acceleration of the man and boat c. position of man at the time when he reaches to other end of the boat d. frictional force e. work done by friction on boat. f. total work done by friction. g. velocities of man and boat when the man reaches other end of the boat. h. work down by man

CENGAGE PHYSICS ENGLISH-SOUND WAVES AND DOPPLER EFFECT-Exercise 6.1
  1. Explain why the speed of sound through a gas cannot be greater than th...

    Text Solution

    |

  2. Sound is more cleary heard with the wind How?

    Text Solution

    |

  3. Explain: if an obeserver places hisear to one end of a long iron pipe ...

    Text Solution

    |

  4. Does the velocity of sound in a solid increase significantly on heatin...

    Text Solution

    |

  5. A man stands on the ground at a fixed distance from a siren which emit...

    Text Solution

    |

  6. Two sound waves from two different sources interfere at a point to yie...

    Text Solution

    |

  7. A sound differs by 6 dB from a sound of intensity equal to 10(nW)/(cm^...

    Text Solution

    |

  8. Find the molecular weight for a gas in which the velocity of sound is ...

    Text Solution

    |

  9. Seven grams of nitrogen is mixed with 12 g of oxygen in a tube and the...

    Text Solution

    |

  10. Calculate the increase velocity of sound for 1^@C rise of temperature ...

    Text Solution

    |

  11. If the sound level in a room is increased from 50 dB to 60 dB, by what...

    Text Solution

    |

  12. Do displacement particle velocity and pressure variation in a longitud...

    Text Solution

    |

  13. Why is sound wave of intensity 10^-12(W)/(m^2) and frequency 1000 Hz t...

    Text Solution

    |

  14. What experimental evidence can be cited to show that the speed of soun...

    Text Solution

    |

  15. Explain why the speed of sound through a gas cannot be greater than th...

    Text Solution

    |

  16. Sound is more cleary heard with the wind How?

    Text Solution

    |

  17. Explain: if an obeserver places hisear to one end of a long iron pipe ...

    Text Solution

    |

  18. Does the velocity of sound in a solid increase significantly on heatin...

    Text Solution

    |

  19. A man stands on the ground at a fixed distance from a siren which emit...

    Text Solution

    |

  20. Two sound waves from two different sources interfere at a point to yie...

    Text Solution

    |