Home
Class 12
PHYSICS
The frequency of fork A is 3% more than ...

The frequency of fork A is 3% more than the frequency of a standard fork where as the frequency of fork B is 3% less. The fork A and B produce 6 beats per second. The frequency of standard fork will be -

A

100 Hz

B

106 Hz

C

103 Hz

D

112 Hz

Text Solution

Verified by Experts

The correct Answer is:
A
`f_A = 103/100 f_0`
`f_B = 97/100 f_0`
`f_A - f_B = 6`
`((103 - 97))/100 xx f_0 = 6`
`6/100 f_0 = 6`
`f_0 = 100 Hz`
Promotional Banner

Topper's Solved these Questions

  • WAVES

    PHYSICS WALLAH|Exercise NEET PAST 4 YEARS QUESTIONS |15 Videos

  • WAVES

    PHYSICS WALLAH|Exercise NEET PAST 4 YEARS QUESTIONS |15 Videos

  • WAVE OPTICS

    PHYSICS WALLAH|Exercise Neet Past 5 Years Questions|16 Videos

  • WORK, ENERGY AND POWER

    PHYSICS WALLAH|Exercise NEET Past 5 Years Questions|16 Videos

Similar Questions

Explore conceptually related problems

The frequency of tuning fork A is 2% more than the frequency of a standard tuning fork. The frequency of a tuning fork B is 3% less than the frequency of the same standard tuning fork. If 6 beat/s are heard when the tuning fork A and B are excited , then frequency of A will be

A tuning fork vibrates with 2 beats in 0.04 second. The frequency of the fork is

A fork A has frequency 2% more than the standard fork and B has a frequency 3% less than the frequency of same standard frok. The forks A and B when sounded together produced 6 beats/s. The frequency of fork A is

31 tuning forks are arranged in series in increasing order of frequencies and the frequency of the last tuning fork is 3 times the frequency of the first. If each tuning fork produces 4 beats/second with the preceding one, the frequency of the last tuning fork is

The frequecies of tuning forks A and B are respectively 5% more and 3% less than the frequency of tuning fork C. When A and B are sounded together 8 beats/second are heard. Then the frequency of the tuning fork B will be

The freuquency of tuning forks A and B are respectively 3% more and 2% less than the frequency of tuning fork C . When A and B are simultaneously excited, 5 beats per second are produced. Then the frequency of the tuning fork A (in Hz) Is

64 tuning forks are arranged in order of increasing frequency. The frequency of the last fork is double of the first and each two consecutive forks produce 4 beats per second. Calculate the frequency of the last fork.

The frequency of tuning forks A and B are respectively 5% more and 4% less than the frequency of tuning fork C. When A and B are simultaneously excited, 9 beats per second are produced. Then the frequency of the tuning fork A (in Hz) is

Two tuning forks A and B give 6 beats/s. The frequency of B is 432 Hz. When B is filed 4 beats/s are produced. The natural frequency of fork A is

PHYSICS WALLAH-WAVES-LEVEL - 2
  1. If lambda(1), lambda(2), lambda(3) are the wavelengths of the waves gi...

    Text Solution

    |

  2. The fundamental frequency of a closed organ pipe is same as the first ...

    Text Solution

    |

  3. The frequency of fork A is 3% more than the frequency of a standard fo...

    Text Solution

    |

  4. A tuning fork produces 6 beats/sec with sonometer wire when its tensio...

    Text Solution

    |

  5. A closed organ pipe and an open organ pipe of same length produce 4 be...

    Text Solution

    |

  6. An engine driver moving towards a wall with velocity of 50 ms^(-1) emi...

    Text Solution

    |

  7. A source of sound is travelling towards a stationary observer. The fre...

    Text Solution

    |

  8. Two tuning forks with natural frequencies of 340 Hz each move relative...

    Text Solution

    |

  9. If v1 and v2 are the frequencies of two turning forks, then beat frequ...

    Text Solution

    |

  10. The second overtone of an open pipe A and closed pipe B have the same ...

    Text Solution

    |

  11. There is a set of four tuning forks , one with the lowest frequency vi...

    Text Solution

    |

  12. A tuning moving towards a tunnel in a huge mountain with a speed of 12...

    Text Solution

    |

  13. Number of beats between A and B is 5 and between B and C are 3. Number...

    Text Solution

    |

  14. If the length of an open organ pipe is 33.3cm , then the frequency of ...

    Text Solution

    |

  15. Two sound sources emitting sound each of wavelength lambda are fixed a...

    Text Solution

    |

  16. A tuning fork when sounded with tuning fork of frequency 256 produces ...

    Text Solution

    |

  17. Equation of a progressive sound wave is y =a sin (400 pi t - (pi x)/(...

    Text Solution

    |

  18. Two identical flutes produce fundamental notes of frequency 300Hz at 2...

    Text Solution

    |

  19. The equation of a wave is given by y=a sin (100t-x/10) where x and ...

    Text Solution

    |

  20. Velocity of sound in a gaseous medium is 330 m s^(-1). If the pressure...

    Text Solution

    |