Home
Class 12
PHYSICS
Consider ten identical sources of sound....

Consider ten identical sources of sound. All giving the same frequency but having phase angles which are random.If the average intensity of each source is ` I_0 ` the average of resultant intensity I due to all these ten sources will be

A

` I= 10 0 I_0`

B

` I= 10 I_0`

C

` I= I_0`

D

` I= sqrt( 10 ) I_0`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • WAVE MOTION

    TARGET PUBLICATION|Exercise MCQ 7.1|61 Videos

  • SURFACE TENSION

    TARGET PUBLICATION|Exercise EVALUATION TEST|21 Videos

  • WAVE THEORY OF LIGHT

    TARGET PUBLICATION|Exercise EVALUATION TEST|20 Videos

Similar Questions

Explore conceptually related problems

Two coherent monochormatic light source are located at two vertices of an equilateral trangle. If the intensity due to each of the source independently is 1Wm^(-2) at the third vertex. The resultant intensity due to both the sources at that point (i.e at the third vertex) is (in Wm^(-2) )

A and B are two point sources of sound (of same frequency) and are kept at a separation. At a point P , the intensity of sound is observed to be I_(0) when only source A is put on. With only B on the intensity is observed to be 2I_(0) . The distance AP is higher than distance BP by half the wavelength of the sound. Find the intensity recorded at P with both sources on. Give your answer for following cases: (a) The sources are coherent and in phase. (b) The sources are coherent and 180° out of phase. (c) The sources are incoherent.

The intensities of two light sources are I and 91 .If the phase difference between the waves is pi then resultant intensity will be :-

If two waves each of intensity l_0 having the same frequency but differing by a constant phase angle of 60^@ superimposing at a certain point in space, then the intensity of the resultant wave is

Light from two coherent sources of the same amplitude A and wavelength lambda illuminates the screen. The intensity of the central maximum is I_(0) . If the sources were incoherent, the intensity at the same point will be

There are 10 sound sources each producing intensity I at a point independently. The are incoherent. Average intensity of sound at that point will be:

TARGET PUBLICATION-WAVE MOTION -MCQ 7.1
  1. The superposition takes place between two waves of frequency f and amp...

    Text Solution

    |

  2. Waves from two different sources overlap near a particular point. The ...

    Text Solution

    |

  3. Consider ten identical sources of sound. All giving the same frequency...

    Text Solution

    |

  4. Equations of two progressive waves at a certain point in a medium are ...

    Text Solution

    |

  5. The amplitude of a wave represented by displacement equation y=(1)/(sq...

    Text Solution

    |

  6. If two waves x1 =A sin (omegat -0.1 x ) and x2 A sin (omegat -0.1x -p...

    Text Solution

    |

  7. The equations of two sound waves are given by, y1 = 3sin ( 100 pi t ) ...

    Text Solution

    |

  8. Two waves of same frequency have amplitudes 5 cm and 3 cm, These waves...

    Text Solution

    |

  9. If two interfering waves have intensities in the ratio 9: 1 ,then the ...

    Text Solution

    |

  10. The number of beats produced per second by two tuning forks when sound...

    Text Solution

    |

  11. Two tuning forks have frequencies 380 and 384 Hz respectively. When th...

    Text Solution

    |

  12. A set of 56 tuning forks is arranged in series of increasing frequenci...

    Text Solution

    |

  13. Each of a given set of 32 tunning forks arranged in a series of increa...

    Text Solution

    |

  14. Two vibrating tuning forks produce prograssive waves given by y1 = 4s...

    Text Solution

    |

  15. Two waves of wavelength 2 m and 2.02 m , with the same speed, superim...

    Text Solution

    |

  16. Two turning forks produce 4 beats per second when sounded together,The...

    Text Solution

    |

  17. The velocity of sound in a gas ,in which two waves of length 1.00 m an...

    Text Solution

    |

  18. A set of 28 tuning forks is arranged in a series of decreasing frequen...

    Text Solution

    |

  19. Wavelengths of two sound waves in air are (110)/( 177) m and ( 110)/(...

    Text Solution

    |

  20. A person is standing on a railway platform.An engine blowing a whistle...

    Text Solution

    |