Home
Class 12
PHYSICS
A sound source moves with a speed of 80 ...

A sound source moves with a speed of `80 m//s` relative to still air toward a stationary listener. The frequency of sound is `200 H_(Z)` and speed of sound in air is `340 m//s`. (a) Find the wavelength of the sound between the source and the listener. (b) Find the frequency heard by the listener.

Text Solution

Verified by Experts

1.3m
Promotional Banner

Topper's Solved these Questions

  • WAVE MOTION AND SOUND

    AAKASH SERIES|Exercise PROBLEMS (LEVEL - I)|59 Videos

  • WAVE MOTION

    AAKASH SERIES|Exercise PRACTICE SHEET ADVANCED (INTEGER TYPE QUESTIONS)|10 Videos

  • WAVE OPTICS

    AAKASH SERIES|Exercise PROBLEMS (LEVEL - II)|33 Videos

Similar Questions

Explore conceptually related problems

Speed of sound in air is 330m//s .Find maximum and minimum wavelength of audible sound in air.

In an organ pipe the distance between the adjacent node is 4 cm . Find the frequency of source if speed of sound in air is 336 m//s .

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

A source of sound is travelling towards a stationary observer. The frequency of sound heard by the observer is 25% more that the actual frequency. If the speed of sound is v, that of the source is

A police siren emits a sinusoidal wave with frequency f_(S) = 300 H_(z) . The speed of the sound is 340 m//s . (a) Find the wavelength of the waves if siren is at rest in the air . (b) If the siren is moving at 30 m//s , Find the wavelength of the waves ahead of and behind the source.

A train is moving at 30 m/s in still air. The frequency of the locomotive whistle is 500 Hz and the speed of sound is 345 m/s. The apparent wavelengths of sound in front of and behind the locomotive are respectively :-

A source of sound of frequency 1000 Hz moves to the right with a speed of 32(m)/(s) relative to the ground. To its right there is a reflecting surface moving to the left with a speed of 64(m)/(s) relative to the ground. Take the speed of 64(m)/(s) . Relative to the ground. Take the speed of sound in air to be 332(m)/(s) and find (a) The wavelength of the sound emitted in air by the source, (b) the number of waves per second arriving at the reflecting surface, (c ) The speed of the reflected waves and (d) The wavelength of the reflected waves.

A railway engine moving with a speed of 60 m/s passes in front of a stationary listener. The real frequency of the whistle is 400 Hz. Calculate the apparent frequency heard by the listener (a) When the engine is approaching the listener (b) When the engine is moving away from listener (V=340 m/s)

The sound of thunder is heard 3 s after flash of lightning. If the speed of sound is 340 m/s, find the height of the cloud.

The minimum wavelength of sound that is audible to a person is (speed of sound is 340 m/s)

AAKASH SERIES-WAVE MOTION AND SOUND-PROBLEMS (LEVEL - II)
  1. A detector is released from rest over a source of sound of frequency f...

    Text Solution

    |

  2. A source S of acoustic wave of the frequency v0=1700Hz and a receiver ...

    Text Solution

    |

  3. A sound source moves with a speed of 80 m//s relative to still air tow...

    Text Solution

    |

  4. A sound source moves with a speed of 80 m//s relative to still air tow...

    Text Solution

    |

  5. A railroad train is travelling at 30 m//s in still air. The frequency ...

    Text Solution

    |

  6. A railroad train is travelling at 30 m//s in still air. The frequency ...

    Text Solution

    |

  7. A railroad train is travelling at 30 m//s in still air. The frequency ...

    Text Solution

    |

  8. A railroad train is travelling at 30 m//s in still air. The frequency ...

    Text Solution

    |

  9. Two identical tuning forks vibrating at the same frequency 256 Hz are ...

    Text Solution

    |

  10. Two sound sources are moving in opposite directions with velocities v...

    Text Solution

    |

  11. A 300 Hz source, an observer and wind are moving as shown in the figur...

    Text Solution

    |

  12. A person standing on a road sends a sound signal to the driver of a ca...

    Text Solution

    |

  13. A stationary sound sound 's' of frequency 334 Hz and a stationary ovs...

    Text Solution

    |

  14. Spherical waves are emitted from a 1.0 W source in an isotropic non-ab...

    Text Solution

    |

  15. The intensity of sound from a point source is 1.0 xx 10^-8 Wm^-2, at a...

    Text Solution

    |

  16. Most people interpret a 9.0 dB increase in sound intensity level as a ...

    Text Solution

    |

  17. About how many times more intense will the normal ear perceiver a soun...

    Text Solution

    |

  18. The explosion of a fire cracker in the air at the a heigth of 40 m pro...

    Text Solution

    |

  19. The sound level at a point 5.0 m away from a point source is 40 dB. Wh...

    Text Solution

    |

  20. If the intensity of sound is doubled, by how many decibels does the so...

    Text Solution

    |