Home
Class 12
PHYSICS
A light pointer fixed to one prong of a ...

A light pointer fixed to one prong of a tuning fork touches gnetly a smoked vertical plate. The fork is set vibrating and the plate is allowed to fall freely. 8 complete oscilllations are counted when the plate falls through 10cm.What is the frequency of the tuning fork?

A

280 Hz

B

56 Hz

C

560 Hz

D

360 Hz

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • SURFACE TENSION

    NIKITA PUBLICATION|Exercise Multiple Choice Questions (Question Given in MHT-CET )|31 Videos
  • WAVE THEORY OF LIGHT

    NIKITA PUBLICATION|Exercise Multiple Choice Questions|303 Videos

Similar Questions

Explore conceptually related problems

A light pointer fixed to one prong of a tuning fork touches gently a smoked vertical plate. The fork is set vibrating and the plate is allowed to fall freely. Two complete oscillations are traced when the plate falls through 40cm. What is the frequency ( in Hz ) of the tuning fork ?

A light pointer fixed to one prong of a tuning fork touches a vertical plate. The fork is set vibrating at a frequency of 56 Hz and allowed to free fall. Calculate how many complete oscillation are couhnted when plate falls st 10 cm

A tuning fork when vibrating along with a sonometer produces 6 beats per second when the length of the wire is either 20 cm or 21 cm . Find the frequency of the tuning fork.

When one of the prong of a tuning fork is waxed a little then frequency of the fork will

When wax is attached to one of the prongs of a tuning fork, frequency of the fork will

A pointer attached to a vibrating fork presses a smoked cylinder lightly. The cylinder is suddenly rotated through one complete revolution in 0.75 seconds. The pointer traces 192 waves on the cylinder. Calculate the frequency of the tuning fork.

A tuning fork produces 4 beats /sec, with a sonometer wire of length 40 cm. It is found that when the length is increased to 44 cm, by keeping other factors constant, again 4 beats/sec are produced. What is the frequency of the tuning fork ?

When a little wax is put on the prongs of a tuning fork, then the frequency of vibration of a tuning fork will

NIKITA PUBLICATION-WAVE MOTION-Multiple Choice Questions
  1. Compare the velocities of sound in hydrogen (H(2)) and carbon dioxide ...

    Text Solution

    |

  2. An observer standing at the sea coast observes 54 waves reaching the c...

    Text Solution

    |

  3. A light pointer fixed to one prong of a tuning fork touches gnetly a s...

    Text Solution

    |

  4. The relation between particle velocity (v), the wave velocity (c) and ...

    Text Solution

    |

  5. At what temperature the velocity of sound in air is 1.5 times the velo...

    Text Solution

    |

  6. A sound wave y = A sin (omega t- kx) is propagating through a medium o...

    Text Solution

    |

  7. A progressive sound wave of frequency 500 Hz is travelling through air...

    Text Solution

    |

  8. If a source sound of frequency 500 Hz produces waves of wavelength 0.1...

    Text Solution

    |

  9. When a compressible wave is sent towards bottom of sea from a stationa...

    Text Solution

    |

  10. The velocity of sound in alcohol is 1300 m/s and the density of alcoho...

    Text Solution

    |

  11. Which of the following is a mechanical wave?

    Text Solution

    |

  12. The sound is a form of energy which propagates through the medium in t...

    Text Solution

    |

  13. Why are sound waves called mechanical waves ?

    Text Solution

    |

  14. The propagation of wave through the medium is possible only when the m...

    Text Solution

    |

  15. A mechanical wave propagastes in a medium along the X-axis. The partic...

    Text Solution

    |

  16. In the following figure the points are in the same phase are

    Text Solution

    |

  17. A stone is dropped on the surface of water in pond. Name the type of w...

    Text Solution

    |

  18. Oscillatory disturbance travelling through the medium is

    Text Solution

    |

  19. Which of the following properties of sound is affected by change in th...

    Text Solution

    |

  20. Wave motion is periodic in

    Text Solution

    |