Home
Class 12
PHYSICS
Two air columns producing their fundame...

Two air columns producing their fundamental notes , give rise to 3 beat/s . If the air column vibrates in third harmonics , then the number of beat/s will be

A

3

B

9

C

6

D

7

Text Solution

Verified by Experts

The correct Answer is:
B
The difference between fundamental frequency
`(n_1-n_1') = n`
The difference between third harmonics
`(3n_1 - 3n_1') = 3n = 3xx3 = 9`
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTORS

    NIKITA PUBLICATION|Exercise MCQS|350 Videos

  • SURFACE TENSION

    NIKITA PUBLICATION|Exercise Multiple Choice Questions (Question Given in MHT-CET )|31 Videos

Similar Questions

Explore conceptually related problems

Two organ pipes give 4 beat/s when sounded together at 27^@C , then the number of beat/s at 127^@C will be

Two organ pipes produce 5 beat/s at 10^@C . When the temperature rises to 20^@C then the number of beats produce will be

Two identical flutes produce fundamental notes of frequency 300Hz at 27^@C . If the temperature of air in one flute is increased to 31^@C , the number of the beats heard per second will be

When temperature of air is 20^(@)C a tuning fork sounded over the open end of an air column produces 4 beats per second, the tuning fork given a lower note. If the frequency of tuning fork is 34 Hz, then find how many beats will be produced by the tuning fork if temperature falls to 5^(@)C ?

In resonance tube experiment, first resonance occurs for the length of air - column equal to 25 cm with a tuning fork of frequency 340 Hz. If the length of the air column is decreased by 1cm , the frequency of beats will be

Two tuning forks A and B gives 6 beat/s. The fork A resonates with a closed end air column of length 15cm and the fork B with an open air column of length 30.5cm . If the air in both the cases vibrates in the air fundamental modes, then the frequencies of fork A and B will be

Two air columns of resonance tubes of lengths 110 cm and 112 cm give 25 beats in 20 seconds. If each air column is sounding its fundamental mode, calculate the velocity of sound.

A column of air at 51^(@) C and a tuning fork produce 4 beats per second when sounded together. As the temperature of the air column is decreased, the number of beats per second tends to decrease and when the temperature is 16^(@) C the two produce 1 beat per second. Find the frequency of the tuning fork.

NIKITA PUBLICATION-STATIONARY WAVES -MCQs
  1. The fundamental frequency of an open and closed organ pipe of the sam...

    Text Solution

    |

  2. A pipe produces notes of frequencies 300Hz, 600Hz, 900 Hz , the pipe i...

    Text Solution

    |

  3. Two air columns producing their fundamental notes , give rise to 3 be...

    Text Solution

    |

  4. An open organ pipe of length is 50 cm, if the velocity of sound in air...

    Text Solution

    |

  5. If the length of the closed pipe whose fundamental frequency is equal ...

    Text Solution

    |

  6. An open pipe resonates to a fundamental frequency 300 Hz and closed p...

    Text Solution

    |

  7. The end correction of the open pipe is

    Text Solution

    |

  8. The sequence of harmonics of a pipe open at one end and closed to the ...

    Text Solution

    |

  9. If the speed of sound in air is 320m/s, then the fundamental frequency...

    Text Solution

    |

  10. The fundamental frequency of an open organ pipe is 300Hz. The first ov...

    Text Solution

    |

  11. What will be the length of the closed pipe of produce resonance with s...

    Text Solution

    |

  12. When an open is producing third harmonic mode, then number of modes wi...

    Text Solution

    |

  13. Two organ pipes, each closed at one end, give 5 beats s^(-1) when em...

    Text Solution

    |

  14. A cylindrical tube containing air is open at both ends. If the shortes...

    Text Solution

    |

  15. A pipe closed at one end produces a fundamental note of frequency 412 ...

    Text Solution

    |

  16. A fork of frequency 256Hz resonates with a closed organ pipe of length...

    Text Solution

    |

  17. A tuning fork of frequency n resonates with a closed organ pipe when t...

    Text Solution

    |

  18. An open organ pipe has fundamental frequency 100 Hz. What frequency ...

    Text Solution

    |

  19. 5 beat/s are produced on blowing together two closed organ pipes of th...

    Text Solution

    |

  20. In an air column , resonances occurs at 25cm and 77cm. If the frequenc...

    Text Solution

    |