Home
Class 12
PHYSICS
If the sonometer experiment is performed...

If the sonometer experiment is performed in a lift and if the lift starts falling down freely, then the fundamental frequency of the sonometer wire will

A

be very high

B

be very low

C

be zero

D

remain the same

Text Solution

Verified by Experts

The correct Answer is:
C
For a freely falling lift, the resultant acceleration inside the lift is zero. There will be no tension `(T = Mg) ` in the wire and hence the frequency will be zero . `[ :' n propto sqrtT]`
Promotional Banner

Topper's Solved these Questions

  • STATIONARY WAVES

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (HIGHER LEVEL)|75 Videos

  • STATIONARY WAVES

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (STANDARD LEVEL )|75 Videos

  • STATIONARY WAVES

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (HIGHER LEVEL )|7 Videos

  • SEMICONDUCTORS

    MARVEL PUBLICATION|Exercise MCQs|261 Videos

  • SURFACE TENSION

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS . (TEST YOUR GRASP )|10 Videos

Similar Questions

Explore conceptually related problems

A knife-edge divides a sonometer wire into two parts. The fundamental frequencies of the two parts are n_(1) and n_(2) . The fundamental frequency of the sonometer wire when the knife-edge is removed will be

If the tension of sonometer’s wire increases four times then the fundamental frequency of the wire will increase by

The tension in a sonometer wire is increased to nine times. Then the fundamental frequency of the wire is

The fundamental frequency of a sonometer wire increases by 5Hz, if the tension is increased by 21% . The fundamental frequency of the sonometer wire is a Hz is

A sonometer is set on the floor of a lift. When the lift is at rest, the sonometer wire vibrates with fundamental frequency 256 Hz. When the lift goes up with acceleration a =(9g)/(16) , the frequency of vibration of the same wire changes to

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

A sonometer wire is divided in many segments using bridges. If fundamental natural frequencies of the segments are n_(1), n_(2), n_(3)….. then the fundamental natural frequency of entire sonometer wire will be (if the divisons were not made):

A stretched sonometer wire resonates at a frequency of 350 Hz and at the next higher frequency of 420 Hz . The fundamental frequency of this wire is :

MARVEL PUBLICATION-STATIONARY WAVES-MULTIPLE CHOICE QUESTIONS ( STANDARD LEVEL )
  1. A string is stretched betweeb fixed points separated by 75.0 cm. It ob...

    Text Solution

    |

  2. If a string fixed at both ends, vibrates in its fourth harmonic, the w...

    Text Solution

    |

  3. If the sonometer experiment is performed in a lift and if the lift sta...

    Text Solution

    |

  4. If the vibrating length of a string is increased by 25%, then its fund...

    Text Solution

    |

  5. The length of a sonometer wire between two fixed ends is 110cm. Where ...

    Text Solution

    |

  6. Two wires of the same material and same cross sectional area are vibra...

    Text Solution

    |

  7. The fundamental frequency of a sonometer wire is 100 Hz. If a weigth o...

    Text Solution

    |

  8. A string of length L between the two bridges of sonometer wire vibrate...

    Text Solution

    |

  9. A tuning fork of frequency 400 Hz, produces 10 beats/ sec, when sounde...

    Text Solution

    |

  10. A pulse of a wave train travels along a stretched string and reaches t...

    Text Solution

    |

  11. If you set up the seventh harmonic on a string fixed at both ends, how...

    Text Solution

    |

  12. The fundamental frequency of a sonometer wire is 200 Hz. It is found...

    Text Solution

    |

  13. A sonometer wire is in unison with a tuning fork . When its length inc...

    Text Solution

    |

  14. A string is kept stretched under a tension T, the velocity of transve...

    Text Solution

    |

  15. A stretched string is vibrating in the second overtone, then the num...

    Text Solution

    |

  16. Stationary waves are produced in 10 m long stretched string. If the st...

    Text Solution

    |

  17. A tuning fork produces 4 beats /sec, with a sonometer wire of length 4...

    Text Solution

    |

  18. A sonometer wire is resonating with a tuning fork of frequency N. If i...

    Text Solution

    |

  19. A wire of mass 5 gram is kept stretched by a force of 400 N. When pluc...

    Text Solution

    |

  20. If the weight attached to the sonometer wire is increased from 2 kg wt...

    Text Solution

    |