Home
Class 12
PHYSICS
Frequency of a sonometer wire is n. Now ...

Frequency of a sonometer wire is n. Now its tension is increased 4 times and its length is doubled then new frequency will be

A

n/2

B

n

C

2n

D

4n

Text Solution

Verified by Experts

The correct Answer is:
B
`n_1 prop 1/l_1 sqrt(T_1) " and " n_2 prop (sqrtT_2)/(l_2)`
`n_2/n_1=dqrt(T_2/T_1) l_1/l_2 = sqrt4 xx 1/2 = 2/2 =1`
`therefore n_2=n_1 =n`
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

In a stretched string under tension and fixed at both ends, the tension is increased by four times, and the length is doubled, the frequency

The fundamental frequency of a sonometer wire increases by 5Hz, if its tension is increased by 21% .How will the frequency be affected if the length is increased by 10% /

The fundamental frequency of a sonometer wire increases by 5Hz , if it's tension is increased by 21% . How will the frequency be affected, if its length is increased by 10% ?

The fundamental frequency of a sonometer wire increases by 20Hz if its tension is increased by 44%. The fundamental frequency of the sonometer wire is Hz is 10^(n). Find n

The fundatmental frequency of a sonometer wire increases by 6 Hz if its tension is increased by 44% keeping the length constant. Find the change in the fundamental frequency of the sonometer when the length of the wire is increased by 20% keeping the original tension in the wire.

The fundatmental frequency of a sonometer wire increases by 6 Hz if its tension is increased by 44% keeping the length constant. Find the change in the fundamental frequency of the sonometer when the length of the wire is increased by 20% keeping the original tension in the wire.

Fundamental frequency of a stretched sonometer wire is f_(0) . When its tension is increased by 96% and length decreased by 35%, its fundamental frequency becomes eta_(1) f_(0) . When its tension is decreased by 36% and its length is increased by 30%, its fundamental frequency becomes eta_(2) f_(0) . Find eta_(1)/eta_(2)

NIKITA PUBLICATION-STATIONARY WAVES -MCQs
  1. A knife edge divides a sonometer wire in two parts which differ in len...

    Text Solution

    |

  2. A stone in hung in air from a wire which is stretched over a sonometer...

    Text Solution

    |

  3. Frequency of a sonometer wire is n. Now its tension is increased 4 tim...

    Text Solution

    |

  4. When the string of the sonometer of length l between the bridges vibra...

    Text Solution

    |

  5. Length of a sonometer wire is either 95 cm or 100 cm. In both the case...

    Text Solution

    |

  6. Two wires made up of the same material are of equal lengths but their ...

    Text Solution

    |

  7. A sonometer wire of length 114 cm is fixed at both the ends. Where sho...

    Text Solution

    |

  8. A sonometer wire carries a brass weight of density 8 gm/cc at its free...

    Text Solution

    |

  9. A sonometer wire of length 65cm is in resonance with a tuning fork of ...

    Text Solution

    |

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

    Text Solution

    |

  11. One metre long sonometer wire is stretched with a force of 4kg wt, ano...

    Text Solution

    |

  12. Two wires are fixed on a sonometer with their tensions are in the rati...

    Text Solution

    |

  13. A stretched string is in unison with a tuning fork of frequency 392Hz....

    Text Solution

    |

  14. In a sonometer wire, the tension is maintained by suspending a 50.7 kg...

    Text Solution

    |

  15. A wire under certain tension is in unison with a tuning fork when tens...

    Text Solution

    |

  16. Two identical strings of a stringed musical instrument are in unison w...

    Text Solution

    |

  17. The fundamental frequency of a sonometer wire increases by 5Hz , if it...

    Text Solution

    |

  18. A wire is under a tension of 32N and length between the two bridges ...

    Text Solution

    |

  19. A wire under tension vibrates with a frequency of 450Hz. What would be...

    Text Solution

    |

  20. A sonometer wire of length 100cm has fundamental frequency of 320Hz. ...

    Text Solution

    |