Home
Class 11
PHYSICS
The echo of a sound is heard after 20s c...

The echo of a sound is heard after 20s coming from the mountain. What is the distance of the mountain if the velocity of the sound in air is 330 m/s ?

A

3.3 km

B

6.6 km

C

1. 65 km

D

13.2 km

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A STRAIGHT LINE

    PATHFINDER|Exercise QUESTION BANK|29 Videos

  • PROPERTIES OF BULK MATTER

    PATHFINDER|Exercise QUESTION BANK|353 Videos

Similar Questions

Explore conceptually related problems

The echo of the sound of an explosion from the bottom of an ocean was heard after 10 sec of its occurrence. If the velocity of sound in water be 1500 m//s , the depth of the ocean at the place is :

The fundamental frequency of a 100 cm long sonometer wire is 330 Hz. Find out the velocity of transverse wave in the wire and the wavelength of the resulting sound waves in air . Given , velocity of sound in air = 330 m * s ^(-1) .

To hear the echo of a sound, the minimum distance between, listener and the reflector should be speed of sound in air =340 m/s)

PATHFINDER-OSCILLATION AND WAVES-QUESTION BANK
  1. The equation of a progressive wave is y=5"sin"pi/2(100t-x)cm what is t...

    Text Solution

    |

  2. Which property remains unaltered when a wave enters into a medium from...

    Text Solution

    |

  3. The echo of a sound is heard after 20s coming from the mountain. What ...

    Text Solution

    |

  4. The velocity of sound in a material medium does not depend on which fa...

    Text Solution

    |

  5. The frequency of the fundamental in a closed tube is 200 Hz. The frequ...

    Text Solution

    |

  6. The two waves of equation y1= Asin2000pit and y2=Asin20087pit are su...

    Text Solution

    |

  7. What is the ratio of the velocity of sound in hydrogen and in oxygen g...

    Text Solution

    |

  8. Frequency of a tuning for k is 256Hz. Find the frequency of another tu...

    Text Solution

    |

  9. In case of free vibration of a body the quantity that remains constant

    Text Solution

    |

  10. During damped vibration, the quantity which gradually decreases is

    Text Solution

    |

  11. During a speech, the vibration of the diaphragm of a microphone is

    Text Solution

    |

  12. If a vibrating tuning fork is held at the open end of a tube closed at...

    Text Solution

    |

  13. Which one of the following physical quantities moves with a wave at th...

    Text Solution

    |

  14. Which one of the following phenomenon differentiates transverse wave f...

    Text Solution

    |

  15. Sound wave is a

    Text Solution

    |

  16. Light wave is a

    Text Solution

    |

  17. Which of the following one is not wave?

    Text Solution

    |

  18. A wave is advancing along the surface of water with a velocity of 80 c...

    Text Solution

    |

  19. A wave is advancing along the surface of water with a velocity of 80 c...

    Text Solution

    |

  20. The equation of a progressive wave is given by y=5"sin"(pi)/2(100 -x) ...

    Text Solution

    |