Home
Class 12
PHYSICS
A tuning fork of frequency 512 Hz makes ...

A tuning fork of frequency 512 Hz makes 4 beats//s with the vibrating string of a piano. The beat frequency decreases to 2 beats//s when the tension in the piano string is slightly increased.The frequency of the piano string before increasing the tension was

A

510 Hz

B

514 Hz

C

516 Hz

D

508 Hz

Text Solution

Verified by Experts

The correct Answer is:
D
The frequency of the piano string `=512 pm 4=516 or 508`. When the tension is increased, beat frequency decreases to 2, it means that frequency of the string is 508 as frequency of string increases with tension.
Promotional Banner

Topper's Solved these Questions

  • WAVES

    DISHA PUBLICATION|Exercise EXERCISE 1 CONCEPT BUILDER|58 Videos

  • WAVE OPTICS

    DISHA PUBLICATION|Exercise EXERCISE-2 : CONCEPT APPLICATOR|30 Videos
DISHA PUBLICATION-WAVES-EXERCISE -2 CONCEPT APPLICATOR
  1. In a transverse wave the distance between a crest and neighbouring tro...

    Text Solution

    |

  2. An engine approaches a hill with a constant speed. When it is at a dis...

    Text Solution

    |

  3. A transverse sinusoidal wave moves along a string in the positive x-di...

    Text Solution

    |

  4. The frequency of a stretched uniform wire under tension is in resonanc...

    Text Solution

    |

  5. A man is watching two trains, one leaving and the other coming in with...

    Text Solution

    |

  6. An organ pipe, open from both end produces 5 beats per second when vib...

    Text Solution

    |

  7. An earthquake generates both transverse (S) and longitudinal (P) sound...

    Text Solution

    |

  8. An isotrophic point source S of sound emits constant power, Two points...

    Text Solution

    |

  9. A column of air and a tuning fork produce 4 beats per second when soun...

    Text Solution

    |

  10. The temperature of a mono-atomic gas in an uniform container of length...

    Text Solution

    |

  11. A fork of unknown frequency gives 4 beats per second when sounded with...

    Text Solution

    |

  12. If two tuning fork A and B are sounded together they produce 4 beats p...

    Text Solution

    |

  13. A source of sound is travelling at 100 /3 ms^-1 along a road, towards ...

    Text Solution

    |

  14. The vibrations of a string of length 60 cm fixed at both the ends are ...

    Text Solution

    |

  15. String 1 is connected with string 2. The mass per unit length is strin...

    Text Solution

    |

  16. A wave travelling along the x-axis is described by the equation v(x, t...

    Text Solution

    |

  17. A thick uniform rope of length L is hanging from a rigid support . A t...

    Text Solution

    |

  18. An engine running at speed (v)/(10) sounds a whistle of frequency 600 ...

    Text Solution

    |

  19. A tuning fork of frequency 512 Hz makes 4 beats//s with the vibrating ...

    Text Solution

    |

  20. A uniform tube of length 60.5 cm is held vertically with its lower end...

    Text Solution

    |