Home
Class 12
PHYSICS
A source of unknown frequency gives 4 be...

A source of unknown frequency gives 4 beats/s, when sounded with a source of known frequency 250 `Hz`. The second harmonic of the source of unknown frequency gives five beats per second, when sounded with a source of frequency 513 `Hz`The unknown frequency is

A

245 hz

B

246 Hz

C

240 Hz

D

260 Hz

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. A wave travelling in the +ve x-direction having displacement along y-d...

    Text Solution

    |

  2. If we study the vibration of a pipe open at both ends, then the follow...

    Text Solution

    |

  3. A source of unknown frequency gives 4 beats/s, when sounded with a sou...

    Text Solution

    |

  4. If v(1) , v(2) and v(3) are the fundamental frequencies of three segme...

    Text Solution

    |

  5. Two sources of sound placed close to each other are wmitting progressi...

    Text Solution

    |

  6. Two waves are represented by the equations y1=asin(omegat=kx+0.57)m an...

    Text Solution

    |

  7. Sounds waves travel at 350m//s through a warm air and at 3500m//s thro...

    Text Solution

    |

  8. A transverse wave is represented by y=Asin(omegat-kx). For what value ...

    Text Solution

    |

  9. A tuning fork of frequency 512 Hz makes 4 beats//s with the vibrating ...

    Text Solution

    |

  10. The driver of a car travelling with speed 30ms^-1 towards a hill sound...

    Text Solution

    |

  11. A wave in a string has an amplitude of 2 cm. The wave travels in the +...

    Text Solution

    |

  12. The wave described by y = 0.25 "sin"(10 pi x - 2pit) , where x and y a...

    Text Solution

    |

  13. Two periodic waves of intensities I(1) and I(2) pass through a region ...

    Text Solution

    |

  14. Which one the following statements is ture?

    Text Solution

    |

  15. The time of reverberation of a room A is one second. What will be the ...

    Text Solution

    |

  16. A transverse wave propagating along x-axis is represented by: y(x,t)=8...

    Text Solution

    |

  17. Two sound waves with wavelengths 5.0 m and 5.5 m respectively, each pr...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |