Home
Class 12
PHYSICS
A point source emits sound equally in al...

A point source emits sound equally in all directions in a non-absorbing medium. Two point `P` and `Q` are at distance of `2 m` and `3 m` respectively from the source. The ratio of the intensities of the wave at `P` and `Q` is :

A

`9:4`

B

`2:3`

C

`3:2`

D

`4:9`

Text Solution

Verified by Experts

The correct Answer is:
a
Promotional Banner

Topper's Solved these Questions

  • THERMAL AND CHEMICAL EFFECTS OF CURRENt

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise Exercise|34 Videos

  • WORK, ENERGY AND POWER

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise objective|51 Videos
NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-WAVES-All Questions
  1. Two sound waves with wavelengths 5.0 m and 5.5 m respectively, each pr...

    Text Solution

    |

  2. Two vibrating tuning fork produce progressive waves given by y(1) = 4 ...

    Text Solution

    |

  3. A point source emits sound equally in all directions in a non-absorbin...

    Text Solution

    |

  4. The two waves are represented by y(1)= 10^(-6) sin(100t + (x)/(50)+ ...

    Text Solution

    |

  5. A car is moving towards a high cliff. The car driver sounds a horn of ...

    Text Solution

    |

  6. An observer moves towards a stationary source of sound with a speed ((...

    Text Solution

    |

  7. A whistle revolves in a circle with an angular speed of 20 rad//sec us...

    Text Solution

    |

  8. A wave travelling in positive X-direction with A=0.2m has a velocity o...

    Text Solution

    |

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

    Text Solution

    |

  10. A wave enters to water form air. In air frequency, wavlength intensity...

    Text Solution

    |

  11. Equation for two waves is given as y(1)=asin(omegat+phi(1)), y(2)=asin...

    Text Solution

    |

  12. Masses M(A) "and" M(B) hanging from the ends of strings of lengths L(A...

    Text Solution

    |

  13. A sonometer wire when vibrated in full length has frequency n. Now, it...

    Text Solution

    |

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

    Text Solution

    |

  15. Two waves of wavelength 50 cm and 51 cm produce 12 beat/s . The speed ...

    Text Solution

    |

  16. A standing wave having 3 nodes and 2 antinodes is formed between two a...

    Text Solution

    |

  17. In a sinusoidal wave the time required for a particular point to move ...

    Text Solution

    |

  18. A vehicle, with a horn of frequency n is moving with a velocity of 30 ...

    Text Solution

    |

  19. A transverse wave is represented by the equation y=y0sin.(2pi)/(lamd...

    Text Solution

    |

  20. A cylinderical tube open at both ends, has a fundamental frequency f i...

    Text Solution

    |