Home
Class 12
PHYSICS
A note of frequency 300 Hz has an intens...

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)`)

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
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

A sound wave of frequency 280 Hz has an intensity of 1.00 W//m2 ? What is the amplitude of the air oscillations caused by this wave?

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 density of air is 1.293 kg m^3 . Express it in cgs units.

The minimum intensity of audibility of a source is 01^(-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)) ]

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 :

The frequency of a tuning fork is 600 Hz. What is the number of vibrations made by the tunning fork, when the sound produced by the tuning fork travels a distance of 110 ? (Velocity of sound in air is 330 ms^(-1) )

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) )

A train standing at the outer signal of a railway station blows a whistle of frequency 400Hz in still air. The train begins to move with a speed of 10ms^(-1) towards the platform. What is the frequency of the sound for an observer standing on the platform ? (sound velocity in air =330ms^(-1))

PHYSICS GALAXY - ASHISH ARORA-WAVES -Unsolved Numerical Problems for Preparation of NSE, INPhO & IPhO
  1. A string 25cm long and having a mass of 2.5 gm is under tension. A pip...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  9. Microwaves which travel with the speed of light are reflected from a d...

    Text Solution

    |

  10. A man walks towards a cliff while beating a drum at the rate of 5 beat...

    Text Solution

    |

  11. A tunnel leading straight through a hill greatly amplifies tones at 13...

    Text Solution

    |

  12. A smoked plate falls vertically under gravity. A tuning fork traces wa...

    Text Solution

    |

  13. A sonometer wire under tension of 64 N vibrating in its fundamental mo...

    Text Solution

    |

  14. Sources Separated by 20 m vibrate according to equations y(1) = 0.06 s...

    Text Solution

    |

  15. A wire of density 9000 kg//m^(3) is stretched between two clamps 100 c...

    Text Solution

    |

  16. Ordinary cotton thread, 200cm of which weight 1g, is used in Melde's e...

    Text Solution

    |

  17. A heavy ball is suspended from the ceiling of a motor car through a li...

    Text Solution

    |

  18. The difference between the apparent frequency of a source of sound as ...

    Text Solution

    |

  19. Two wires are kept tight between the same pair of supports. The tensio...

    Text Solution

    |

  20. Three metal rods are located relative to each other shown in figure - ...

    Text Solution

    |