Home
Class 12
PHYSICS
When two tuning forks A and B are sounde...

When two tuning forks A and B are sounded together x `beats//s` are heard. Frequency A is `n`. Now when one prong of B is loaded with a little wax, the number of beats/s decreases. The frequency of fork B is

A

`n -x`

B

`n + x`

C

`n - 2x`

D

`n + 2x`

Text Solution

Verified by Experts

The correct Answer is:
B
Frequency of B may be `n + x or n -x`. If B is loaded its frequency will decrease. If it is `(n +x)`, then the number of beats will decrease
Promotional Banner

Topper's Solved these Questions

  • WAVE MOTION

    MARVEL PUBLICATION|Exercise Test your grasp|15 Videos

  • SURFACE TENSION

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

  • WAVE THEORY OF LIGHT AND POLARISATION

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP -10|15 Videos

Similar Questions

Explore conceptually related problems

When two tuning fork are sounded together produce x beats/s. The fequency of A is n_(A) . The fork B is loaded with little wax then x-1 number of beats per second are produced, then the frequency of fork B before loading will be

When two tuning forks were sounded together , 20 beats were produced in 10 seconds. On loading one of the fork with wax, the number of beats increases. If the frequency of unloaded fork is 512Hz , calculate the frequency of other.

When tuning forks A and B are sounded together 5 beats per second are heard. Frequency of A is 250Hz . On loading A with wax 2 beats per second are produced with B. The frequency of B is

When two tuning forks A and B are sounded together, 4 beats per second are head. The frequency of the fork B is 348 Hz. When one of the prongs of the fork A is filled and sounded with B, the beat frequency increases, then the frequency of the fork A is

Two tuning forks A and B are sounded together and it results in beats with frequency of 4 beats per second . When A is loaded with wax, they again produces 4 beats per second . If frequency of A is 256 Hz, then the frequency of B is

When a tuning fork A and B are sounded together,the number of beats heard are 4 per second.When tuning fork A is field,the number of beats heard per second with B is changed to 3.If the frequency of tuning fork B is 384 Hz,the original frequency of A is

A tuning fork produces 4 beats per second when sounded togetehr with a fork of frequency 364 Hz. When the first fork is loaded with a little wax ten the number of beats becomes two per second. What is the frequency of the first fork?

Two tuning forks A and B are sounded together and 8 beats//s are heard . A is in resonance with a column of air 32 cm long in a pipe closed at one end and B is increased by one cm . Calculate the frequency of fork .

MARVEL PUBLICATION-WAVE MOTION-Test your grasp
  1. When two tuning forks A and B are sounded together x beats//s are hear...

    Text Solution

    |

  2. In a sinusoidal wave, the time required by a particular particle to mo...

    Text Solution

    |

  3. A longitudinal wave in air is travelling towards the closed base of me...

    Text Solution

    |

  4. If the amplitude of a wave at a distance r from a point source is A, t...

    Text Solution

    |

  5. The equation of a progressive wave is given by y = 5 sin [pi ((t)/(5...

    Text Solution

    |

  6. A simple harmonic wave is represent by the relation y(x,t)=a(0) sin ...

    Text Solution

    |

  7. Two waves of equal amplitude when superposed, give a resultant wave ha...

    Text Solution

    |

  8. A set of 11 tuning forks is arranged in the ascending order of frequen...

    Text Solution

    |

  9. An unknown frequency x produces 8 beats per seconds with a freuquency ...

    Text Solution

    |

  10. Two sound waves of wavelength (92)/(147) m and (92)/(149)m produce 8 b...

    Text Solution

    |

  11. Wavelengths of two sound notes in air are (80)/(177)m and (80)/(175)m ...

    Text Solution

    |

  12. A whistle revolves in a circle with an angular speed of 20 rad//sec us...

    Text Solution

    |

  13. An observer moves towards a stationary source of sound, with a veloci...

    Text Solution

    |

  14. Two sources A and B are sounding notes of frequency 680 Hz. A listener...

    Text Solution

    |

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

    Text Solution

    |

  16. A tuning fork A having a frequency of 300 Hz is sounded together with ...

    Text Solution

    |