Home
Class 11
PHYSICS
Vibrating tuning fork of frequency n is ...

Vibrating tuning fork of frequency `n` is placed near the open end of a long cylindrical tube. The tube has a side opening and is fitted with a movable reflecting piston. As the piston is moved through `8.75 cm`, the intensity of sound changes from a maximum to minimum. If the speed of sound is `350 m//s`. Then `n` is

A

`500 Hz`

B

`1000 Hz`

C

`2000 Hz`

D

`4000 Hz`

Text Solution

Verified by Experts

The correct Answer is:
B
By moving piston, extra path difference `= 2 xx 8.75`
`= 17.5 cm`
`(lambda)/(2) = 17.5 rArr lambda = 35 cm = 0.35 m`
`f = (v)/(lambda) = (350)/(0.35) = 1000 Hz`
Promotional Banner

Topper's Solved these Questions

  • SOUND WAVES

    CP SINGH|Exercise Exercises|130 Videos

  • SIMPLE HARMONIC MOTION

    CP SINGH|Exercise Exercises|125 Videos

  • TEMPERATURE AND THERMAL EXPANSION

    CP SINGH|Exercise EXERCISES|64 Videos

Similar Questions

Explore conceptually related problems

A vibrating tuning fork of frequency n is placed near the open end of a long cylindrical tube. The tube has a side opening and is also fitted with a movable reflecting piston. As the piston is moved through 8.75 cm, the intensity of sound just changes from a maximum to minimum. If the speed of sound is 350 metre per second, the value of n is N^3 then N is.

A long cylindrical tube carries a highly polished piston and has a side opening . A tuning fork of frequency n is sounded at the open end of the tube . The intensity of the sounded heard by the listener changes if the piston is moved in or out. At a particular position of the piston he hears a maximum sound . When the piston is moved through a distance of 9 cm , the intensity of sound becomes minimum. If the speed of sound is 360 m//s , the value of n is

A tuning fork of frequency n is held near the open end of tube, the tube is adjusted until resonance occurs. If the two shortest lengths to produce resonance are L_1 and L_2 , then the speed of the sound is

A tuning fork vibrating with a frequency of 500 Hz is kept close to the open end of a tube filled with water, as shown in figure. The water level in the tube is gradually lowered When the water level is 17 cm below the open the open end, maximum intensity of sound is heard. If the room temperature is 20^(@) C, the speed of sound in air at the temperature is

In Quincke's experiment the sound detected is changed from a maximum to a minimum when the sliding tube is moved through a distance of 2.50 cm. Find the frequency of sound if the speed of sound in air is 340 m s^-1 .

A tuning fork vibrating with a frequency of 512 Hz is kept close to the open end of a tube filled with water , figure. The water level in the tube is gradually lowerd. When the water level is 17cm below the open end, maximum intensity of sound in heard. If the room temperature is 20^(@)C , calculate (a) speed of sound in air at room temperature. (b) speed of sound in air at 0^(@)C (c) if the water in the tube is replaced with mercury, will there be any difference in your observations?

CP SINGH-SOUND WAVES-Exercises
  1. In a hall, a person receives direct sound waves from a source 120 m aw...

    Text Solution

    |

  2. Two loudspeakers L1 and L2 driven by a common oscillator and amplifier...

    Text Solution

    |

  3. Vibrating tuning fork of frequency n is placed near the open end of a ...

    Text Solution

    |

  4. Two sources of sound are placed along the diameter of a circle of radi...

    Text Solution

    |

  5. Beats occur because of

    Text Solution

    |

  6. The phenomenon of beats can take place

    Text Solution

    |

  7. When beats are produced by two progressive waves of nearly the same fr...

    Text Solution

    |

  8. Two tuning forks of frequencies 256 Hz and 258 Hz are sounded together...

    Text Solution

    |

  9. Two sources of sound placed close to each other are wmitting progressi...

    Text Solution

    |

  10. Maximum number of beats frequency heard by a human being is

    Text Solution

    |

  11. Two vibrating tuning forks produce progressive waves given by y(1)=sin...

    Text Solution

    |

  12. When a tuning fork A of frequency 100 Hz is sounded with a tuning fork...

    Text Solution

    |

  13. Two tuning forks A and B vibrating simultaneously produce 5 beats//s. ...

    Text Solution

    |

  14. The freuquency of tuning forks A and B are respectively 3% more and 2%...

    Text Solution

    |

  15. Each of the two strings of length 51.6 cm and 49.1 cm are tensioned se...

    Text Solution

    |

  16. Two wires are fixed in a sanometer. Their tension are in the ratio 8:1...

    Text Solution

    |

  17. When beats are produced by two progressive waves of same amplitude and...

    Text Solution

    |

  18. 65 tuning forks are arranged in order of increasing frequency. Any two...

    Text Solution

    |

  19. In a stationary longitudinal wave, nodes are points of

    Text Solution

    |

  20. When the open organ pipe resonates in its fundamental mode then at the...

    Text Solution

    |