Home
Class 12
PHYSICS
To increase the frequency by 20%, the te...

To increase the frequency by `20%`, the tension in the string vibrating on a sonometer has to be increased by

A

`44%`

B

`33%`

C

`22%`

D

`11%`

Text Solution

Verified by Experts

The correct Answer is:
a
We know that `v prop sqrt(T)`
Let tension has to be increased by `x%` then
`(v+20%"of v")/v=sqrt((T+"x%of T")/T)`
`6/5= sqrt(1+x/100)`
`rArr 36/25 = 1 + x/100 or x = 44%`
Thus, Tension has to be increased by `44%`.
Promotional Banner

Topper's Solved these Questions

  • STATIONARY WAVES

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise EXERCISE 2|27 Videos

  • STATIONARY WAVES

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|28 Videos

  • STATIONARY WAVES

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|28 Videos

  • SEMICONDUCTORS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|25 Videos

  • SURFACE TENSION

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|15 Videos

Similar Questions

Explore conceptually related problems

To increase the frequency from 100 Hz to 400 Hz the tension in the string has to be changed by

A tuning fork of frequency 256 Hz gives 5 beats // s with a vibrating string of a piano. The beat frequency decreases to 2, when tension in the string is slightly increased. What was the frequency of the piano string before increasing the tension ?

The stirng stretched by tension T and length L vibrates in resonance with a tuning fork of frequency n. the tension in the stretched string is increased by 69% and length of string reduced by 35%. Then, the frequency of vibrating string is

A tuning fork of frequency 512 Hz is vibrated with sonometer wire and 6 beats per seconds are heard. The beat frequency reduces if the tension in the string is slightly increased. The original freqency of vibration of the string is

The tension of a stretched string is increased by 69%. In order to keep its frequency of vibration constant, its length must be increased by :

A tuning fork of frequency 512 Hz is vibrated with a sonometer wire and 6 beats per second are heard. The beat frequency reduces if the tension is the string is slightly increased . The original frequency of vibration of the string is

The tension of a string is inceased by 44% . If its frequency of vibration is to remain unchanged its length must be increased by

A tuning fork of frequency 200 Hz is in unison with a sonometer wire . Tension is the wire of sonometer is increased by 1% without any change in its length . Find the number of beats heard in 9 s.

The percentage increase in the speed of transverse waves produced in a stretched string if the tension is increased by 4%, will be _____________%.

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-STATIONARY WAVES -EXERCISE 1
  1. Two stratched strings of same material are vibrating under some tensio...

    Text Solution

    |

  2. A uniform wire of length L, diameter D and density rho is stretched un...

    Text Solution

    |

  3. To increase the frequency by 20%, the tension in the string vibrating ...

    Text Solution

    |

  4. the frequency of a sonometer wire is 10 Hz. When the weight producing ...

    Text Solution

    |

  5. When the length of the vibrating segment of a sonometer wire is incre...

    Text Solution

    |

  6. Two forks A and B when sounded together produce four beats s^(-1). The...

    Text Solution

    |

  7. A pipe of 60 cm long and open at both the ends produces harmonics. Whi...

    Text Solution

    |

  8. If we study the vibration of a pipe open at both ends, then the follow...

    Text Solution

    |

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

    Text Solution

    |

  10. The frequency of the first overtons of a closed pipe of length l(1) is...

    Text Solution

    |

  11. Air is blown at the mouth of an open tube of length 25 cm and diamete...

    Text Solution

    |

  12. A pipe opened at both ends prpduces a note of frequency f(1). When the...

    Text Solution

    |

  13. A closed organ pipe of length 1.2 m vibrates in its first overtone mod...

    Text Solution

    |

  14. An organ pipe P closed at one end vibrates in its first narmonic. Anot...

    Text Solution

    |

  15. Two closed organ pipe A and B have the same length. A is wider than B....

    Text Solution

    |

  16. If lambda(1), lambda(2), lambda(3) are the wavelengths of the waves gi...

    Text Solution

    |

  17. An organ pipe is closed at one end has fundamental frequency of 1500 H...

    Text Solution

    |

  18. Two closed organ pipes of length 100 cm and 101 cm 16 beats is 20 sec....

    Text Solution

    |

  19. An open pipe is suddenly closed at one end with the result that the fr...

    Text Solution

    |

  20. An open organ pipe has fundamental frequency 100 Hz. What frequency wi...

    Text Solution

    |