Home
Class 12
PHYSICS
A tuning fork of unknown frequency makes...

A tuning fork of unknown frequency makes 5 beats per second with another tuning fork which can cause a closed organ pipe of length 40 cm to vibrate in its fundamental mode. The beat frequency decreases when the first tuning fork is slightly loaded with wax. Find its original frequency. The speed of sound in air is `320 ms^-1`

Text Solution

Verified by Experts

205 Hz
Promotional Banner

Topper's Solved these Questions

  • WAVE MOTION AND SOUND

    AAKASH SERIES|Exercise PROBLEMS (LEVEL - II)|97 Videos

  • WAVE MOTION AND SOUND

    AAKASH SERIES|Exercise EXERCISE (VERY SHORT ANSWER QUESTIONS)|60 Videos

  • WAVE MOTION

    AAKASH SERIES|Exercise PRACTICE SHEET ADVANCED (INTEGER TYPE QUESTIONS)|10 Videos

  • WAVE OPTICS

    AAKASH SERIES|Exercise PROBLEMS (LEVEL - II)|33 Videos

Similar Questions

Explore conceptually related problems

A tuning fork of frequency 256 Hz produces 4 beats per second with a wire of length 25 cm vibrating in its fundamental mode. The beat frequency decreases when the length is slightly shortened. What could be the minimum length by which the wire be shortened so that it produces no beats with the tuning fork ?

A tuning fork of frequency 256 H_(Z) produces 4 beats per second with a wire of legth 25 cm vibrating in its fundamental mode. The beat frequency decrease when the length is slightly shortened. What could be the minimum length by which the wire be shortened so that it produces no beats with the tuning fork?

A tuning fork A frequency 384Hz gives 6 beats in 2 seconds when sounded with another tuning fork B. What could be the frequency of B?

A tunning fork of unknown frequency gives 4 beats per second when sounded with a fork of frequency 320Hz. When loaded with a little wax it give 3 beats per second. Find the unknown frequency.

A tuning fork of unknown frequency produces 4 beats per second when sounded with another tuning fork of frequency 254 Hz. It gives the same number of beats per second when unknown tuning fork loaded with wax . The unknown frequency before loading with wax is

A tuning fork of unknows frequency makes three beats per second with a standard fork of frequency 384 H_(Z) . The beat frequency decreases when a small piece of wax is put on a prong of the first fork. What is the frequency of this fork?

A tuning fork of frequency 510 Hz is vibrated with a sonometer wire and 4 beats per second are heard. The beat frequency increases if the tension in the string is slightly increased. The original frequency of the string is

A tuning fork of known frequency 256 Hz makes 5 beats per second with the vibrating string of a piano. The beat frequency decreases to 2 beats per second when the tension in the piano string is slightly increased. The frequency of the piano string before increasing the tension was

A tuning fork of unknown frequency produoed 4 beats per second when sounded with a standard fork of frequency 256 Hz. The beat frequency decreased when a little wax was pot on a prong of the first fork. What was the frequency of the fork before loading it with wax ?

A tuning fork P of unknows frequency gives 7 beats in 2 seconds with another tuning fork Q . When Q runs towards a wall with a speed of 5 m//s it gives 5 beats per second with its echo. On loading P with wax, it gives 5 beats per second with Q . What is the frequency of P ? Assume speed of sound = 332 m//s .

AAKASH SERIES-WAVE MOTION AND SOUND-PROBLEMS (LEVEL - I)
  1. An organ pipe has two successive harmonics with frequencies 400 and 56...

    Text Solution

    |

  2. The fundamental frequency of a closed pipe is 220 H(Z). (a) Find the...

    Text Solution

    |

  3. The fundamental frequency of a closed pipe is 220 H(Z). (a) Find the...

    Text Solution

    |

  4. A source of frequency 10kHz when viberted over than mouth of a closed ...

    Text Solution

    |

  5. A closed organ pipe and an open organ pipe of same length produce 2 be...

    Text Solution

    |

  6. A tuning fork produces 4 beats per second with another tuning fork of ...

    Text Solution

    |

  7. Two tuning forks when sounded together produce 5 beats in 2 seconds. T...

    Text Solution

    |

  8. Two progressive waves y(1) = 4 sin 400 pi t and y(2) = 3 Sin 404 pi t ...

    Text Solution

    |

  9. Calculate the frequency of beats produced in air when two sources of s...

    Text Solution

    |

  10. Two sitar strings A and B playing the note ‘Ga’ are slightly out of tu...

    Text Solution

    |

  11. The frequency of a tuning fork A is 2% more than the frequency of a st...

    Text Solution

    |

  12. A man standing at some distance from a cliff hears the echo of sound a...

    Text Solution

    |

  13. A motor car approaching a cliff with a velocity of 90 kmph sounds the ...

    Text Solution

    |

  14. A person standing between two parallel hills fires a gun. He hears the...

    Text Solution

    |

  15. A tuning fork of unknown frequency makes 5 beats per second with anoth...

    Text Solution

    |

  16. A traffic policeman standing on a road sounds a whistle emitting the m...

    Text Solution

    |

  17. A person riding a car moving at 72 km h^-1 sounds a whistle emitting a...

    Text Solution

    |

  18. A person riding a car moving at 72 km h^-1 sounds a whistle emitting a...

    Text Solution

    |

  19. A car moving at 108 km/h finds another car in front of it going in the...

    Text Solution

    |

  20. A tuning fork of frequency 328 Hz is moved towards a wall at a speed o...

    Text Solution

    |