Home
Class 12
PHYSICS
The diagram above shows the basic idea b...

The diagram above shows the basic idea behind a disk siren. It consists of a disk in which there are 16 equally spaced hoies, all at the same distance from its axle. When a jct of air is directed at the holes and the disc is rotated at a particular constant rate, the frequency of the note produced is 320 Hz. When a disk containing 24 holes is rotated at `4 / 3` times the rate then frequency of note produced is `320 n Hz`. Find the value of `n`.
'(##CEN_KSR_PHY_JEE_C17_E01_039_Q15##)'

Text Solution

Verified by Experts

The correct Answer is:
2
Promotional Banner

Topper's Solved these Questions

  • WAVE OPTICS

    CENGAGE PHYSICS|Exercise QUESTION BANK|37 Videos

  • WORK, ENERGY AND POWER

    CENGAGE PHYSICS|Exercise QUESTION BANK|1 Videos

Similar Questions

Explore conceptually related problems

The disc of siren has n holes and the frequency of its rotation is 300 rpm. It produces a notes of wavelength 2.4 m. If the velocity of sound in air is 360 m/s, then the value of n will be

The disc of a siren containing 60 holes rotates at a constant speed of 360 rpm. The emited sound is in unison with a tuning frok of frequency

The disc of a siren has 100 holes and rotates at the rate of 1000 revolutions per mintue. Find the frequency and wavelength of the note emitted by the siren. (Velocity of sound in air = 350 m//s )

A metal disc has a hole in it. When the disc is heated, the size of the hole _________

Calculate the volume of given disk.

Calculate the volume of given disk.

Calculate the volume of given disk.

The disc of a siren containing 60 holes rotates at a constant speed of 360 rpm . The emitted sound is in unison with a tuning fork of frequency

CENGAGE PHYSICS-WAVES-QUESTION BANK
  1. Fundamental frequency of a stretched sonometer wric is f(0). When its ...

    Text Solution

    |

  2. A string of length l is fixed at both ends. It is vibrating in its 3^(...

    Text Solution

    |

  3. A uniform rope of length 12 m and having a mass 6 kg hangs" vertically...

    Text Solution

    |

  4. A progressive wave on a string having linear mass density rho is repre...

    Text Solution

    |

  5. A wire is made by welding together two metals having different densiti...

    Text Solution

    |

  6. A gas is a mixture of two parts by volume of hyprogen and part by volu...

    Text Solution

    |

  7. Two identical wires, one made of iron and the other of aluminum are st...

    Text Solution

    |

  8. A siren placed st a railway platform is emitting sound of frequency 5 ...

    Text Solution

    |

  9. The three identical loud speakcrs in figure play a 170 Hz frequency to...

    Text Solution

    |

  10. Two loudspeakers are, diriven by a common oscillator and amplifier, ar...

    Text Solution

    |

  11. A sound source ( S ) emits frequency of 180 Hz when moving towards a t...

    Text Solution

    |

  12. As shown in the figure, two loudspeakers are located at point A and B....

    Text Solution

    |

  13. In a resonance column apparatus, first resonance is obtained whea the ...

    Text Solution

    |

  14. The fundamental freqủency of an open pipe would be independent of smal...

    Text Solution

    |

  15. Standing waves are set up in a string of length 240 cm clamped hiorizo...

    Text Solution

    |

  16. Consider an elastic string stretched befween two fixed ends A and B as...

    Text Solution

    |

  17. A block string system is shown in the figure. Mass of block A, B and C...

    Text Solution

    |

  18. In the given sonometer arrangentent, a mass M can be hung from a strin...

    Text Solution

    |

  19. Sound waves of frequendy 320 Hz are sent into the top of a vertical tu...

    Text Solution

    |

  20. The diagram above shows the basic idea behind a disk siren. It consist...

    Text Solution

    |