Home
Class 12
PHYSICS
The minimum intensity of audibility of ...

The minimum intensity of audibility of a source is `10^(-12) "watt"//m^(2)`. If the frequency of the note is 1000 Hz, calculate the amplitude of vibrations of air particles. Density of air `= 1.293 kg m^(-3)` and velocity of sound `=340 ms^(-1)`
`["Hint " a = sqrt((I)/(2pi^(2)n^(2)rhoC)) ]`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • WAVES

    PHYSICS GALAXY - ASHISH ARORA|Exercise Advance MCQs with One or More Options Correct|30 Videos

  • WAVE OPTICS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numerical Problems|28 Videos

  • X-RAYS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numerica Problem for Preparation|23 Videos

Similar Questions

Explore conceptually related problems

Calculate the intensity of a note of frequency 1000 Hz if the amplitude of vibration is 10^(-9) cm . Density of air = 1.3 kg m^(-3) and velocity of sound = 340 m s^(-1)

The minimum intensity of audibility of sound is 10^(-12) W//m^(2) s and density of air = 1.293 kg//m^(3) . If the frequency of sound in 1000 Hz , then the corresponding amplitude the vibration of the air particles is [ Take velocity of sound = 332 m//s ]

A note of frequency 300 Hz has an intensity of 1 microwatt per square metre. What is the amplitude of the air vibrations caused by this sound ? (Density of air = 1.293 kg m^(-3) and velocity of sound in air = 332 ms^(-1) )

If the density of air at NTP is 1.293kg//m^(3) and gamma=1.41 , then the velocity of sound in air at NTP is :

A sound wave having a frequency of 100 Hz and pressure amplitude of 10 pa, then calculate the displacement amplitude (Given speed od sound in air = 340 m/s and density of air = 1.29 kg/m^(3) )

Plane harmonic waves of frequency 500 Hz are produced in air with displacement amplitude of 10mum . Given that density of air is 1.29(kg)/(m^3) and speed of sound in air is 340(m)/(s) . Then

The wavelength of sound emitted by a source is 1.7 xx 10^(-2)m . Calculate frequency of the sound, if its velocity is 343.4 ms^(-1) .

What is the intensity of sound of 70 decibel ? ( Given the reference intensity I_0 = 10^(-12) " watt"//m^(2) )

Calculate the amplitude of vibrations of air particles when a wavee of intensity 10^(-3) "watt"//m^(2) is produced by a tuning fork of frequency 540 Hz. Velocity of sound in air = 340 m s^(-1) and density of air = 1.3 kg m^(-3)

PHYSICS GALAXY - ASHISH ARORA-WAVES -Unsolved Numerical Problems for Preparation of NSE, INPhO & IPhO
  1. An under-water swimmer sends a sound signal to the surface. If it prod...

    Text Solution

    |

  2. One end of a string of length 120 cm is tied to a peg and other is att...

    Text Solution

    |

  3. The minimum intensity of audibility of a source is 10^(-12) "watt"//m...

    Text Solution

    |

  4. A plane wave zeta= A cos (omega t-kx) propagates in the reference fram...

    Text Solution

    |

  5. The intensity of a sound wave 20 m away from the sound source is 3 xx ...

    Text Solution

    |

  6. A load of 20 kg is suspended by a steel wire as shown in figure-6.109....

    Text Solution

    |

  7. A policemen blows a whistle of frequency 330 Hz as a car speeds and pa...

    Text Solution

    |

  8. A wire ofuniform cross-section is suspended vertically from a fixed po...

    Text Solution

    |

  9. Standing waves are produced by superposition of two waves y(1) = 0.0...

    Text Solution

    |

  10. A ship steams towards a hill in the sea and sounds its siren and the e...

    Text Solution

    |

  11. A source of sonic oscillations with frequency and a receiver are locat...

    Text Solution

    |

  12. An organ pipe 17 cm long open at one end radiates a tone of frequency ...

    Text Solution

    |

  13. A string 25cm long and having a mass of 2.5 gm is under tension. A pip...

    Text Solution

    |

  14. One end of each of two identical springs, each of force constant 0.5N/...

    Text Solution

    |

  15. A note of frequency 300 Hz has an intensity of 1 microwatt per square ...

    Text Solution

    |

  16. A source of sound with natural frequency v(0) moves uniformly along a ...

    Text Solution

    |

  17. A wire when stretched by the weight of a solid,' gives a fundamental )...

    Text Solution

    |

  18. Two wires of different mass densities are soldered together end to end...

    Text Solution

    |

  19. Calculate the velocity of sound in a mixture of oxygen, nitrogen and a...

    Text Solution

    |

  20. A non-uniform wire of length l and mass M has a variable linear mass d...

    Text Solution

    |