Home
Class 12
PHYSICS
A whistle of frequency 500 Hz tied to th...

A whistle of frequency 500 Hz tied to the end of a string of length 1.2 m revolve at 400 rev/min. a listerner standing some distance away in the plane of rotation of whistle hears frequencies in the range (speed of sound `=340m//s`).

A

436 to 586

B

426 to 574

C

426 to 584

D

436 to 674

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • RACE

    ALLEN|Exercise Basic Maths (Wave Motion & Dopplers Effect) (Superposition of waves interfarence, beats)|15 Videos

  • NEWTONS LAWS OF MOTION

    ALLEN|Exercise EXERCISE-III|28 Videos

  • SIMPLE HARMONIC MOTION

    ALLEN|Exercise Example|1 Videos

Similar Questions

Explore conceptually related problems

A whistle of frequency 500 Hz tied to the end of a string of length 1.2 m revolves at 400 rev/min. A listener standing some distance away in the plane of rotation of whistle hears frequencies in the range (speed of sound = 340 m/s )

A whistle of frequency 500 Hz tied to the end of a string of length 1.2 m revolves at 400 rev / min . A listener standing some distance away in the plane of rotation of whistle hears frequencies in the range (speed of sound = 340 m / s )

A whistle emitting a sound of frequency 440 Hz is tied to a string of 1.5 m length and roated with an angular velocity of 20 rad//s in the horizontal plane. Calculate the range of frequencies heard by an observer stationed at a larger distance from the whistle .(Speed of sound = 330 m//s) .

The frequency of the whistle of a train is observed to drop from 280 Hz to 260 Hz as the train moves away from a stationary listerner on the platform. Calculate the speed of the train, if speed of sound in air is 340 m/s.

A train standing at the outer signal of a railway station blows a whistle of frequency 400 Hz in still air. The train begins to move with a speed of 30 m s^(- 1) towards the platform. The frequency of the sound heard by an observer standing on the platform is (Speed of sound in air = 330 m s^(-1) )

A whistle of frequency 500 Hz is rotated in a circle of radius cne metre with an angular speed of 10 radian/sec. Calculate the lowest and the highest frequency heard by a listener at a long distance away at rest with respect to the centre of the circle ? (Velocity of sound = 340m/s)

A railroad train is travelling at 30 m/s in still air. The frequency of the note emitted by locomotive whistle is 500 Hz. What is the frequency of the sound waves heard by a stationary listener (a) in front of the train and (b) behind the train? (speed of sound is 345m/s.)

A whistle of frequency 540 Hz is moving in a circle of radius 2 ft at a constant angular speed of 15 rad/s. What are the lowest and highest frequencies heard by a listener standing at rest, a long distance away from the centre of the circle? (Velocity of sound in air is 1100ft/s)

A train standing at the outer signal of a railway station blows a whistle of frequency 400 Hz still air. The train begins to move with a speed of 10ms^(-1) towards the platform. What is the frequency of the sound for and observer standing on the platform? (sound velocity in air 330 ms^(-1))

A small source of sound vibrating at frequency 500 Hz is rotated in a circle of radius 100/2pi cm at a constant angular speed of 5-0 revolutions per second. A listener situates himself in the plane of the circle. Find the minimum and the maximum frequency of the sound observed. Speed of sound in air = 332 m s^-1 .

ALLEN-RACE-Basic Maths (Wave Motion & Dopplers Effect) (Stationary waves & doppler effect, beats)
  1. A uniform string resonates with a tuning fork , at a maximum tension o...

    Text Solution

    |

  2. If in a stationary wave the amplitude corresponding to antinode is 4 c...

    Text Solution

    |

  3. What is the phase difference between the displacement wave and pressur...

    Text Solution

    |

  4. A wire of length 'l' having tension T and radius 'r' vibrates with fun...

    Text Solution

    |

  5. Equation of a standing wave is expressed as y = 2A sinomegat coskx. In...

    Text Solution

    |

  6. Two vibrating strings of same material stretched under same tension an...

    Text Solution

    |

  7. The wave-function for a certain standing wave on a string fixed at bot...

    Text Solution

    |

  8. In a standing wave on a string.

    Text Solution

    |

  9. A string vibrates in 5 segments to a frequency of 480 Hz. The frequen...

    Text Solution

    |

  10. A 2.0m long string with a linear mass density of 5.2xx10^(-3) kg m^(-1...

    Text Solution

    |

  11. A wave is given by the equation y = 10 sin 2 pi (100 t - 0.02 x) + ...

    Text Solution

    |

  12. In case of closed organ pipe, which harmonin the p^(th) overtone will ...

    Text Solution

    |

  13. An organ pipe open at one end and closer at other has a length L. the ...

    Text Solution

    |

  14. The first resonance length of a resonance tube is 40 cm and the second...

    Text Solution

    |

  15. A man sitting in a moving train hears the whistle of the engine. The f...

    Text Solution

    |

  16. A whistle of frequency 500 Hz tied to the end of a string of length 1....

    Text Solution

    |

  17. A train moves towards a stationary observer with speed 34 m/s. The tra...

    Text Solution

    |

  18. If source and observer both are relatively at rest and if speed of sou...

    Text Solution

    |

  19. A small source of sound moves on a circle as shown in figure and an ob...

    Text Solution

    |

  20. An observer moves towards a stationary source of sound with a velocity...

    Text Solution

    |