Home
Class 12
PHYSICS
An observer moves towards a stationary s...

An observer moves towards a stationary source of sound with a speed `((1)/(5))`th of the speed of sound. The wavelength and frequency of the source emitted are `lamda` and f, respectively. The apparent frequency and wavelength recorded by the observer are, respectively.

A

`f,1.2 lambda`

B

`0.8f,0.8lambda`

C

`1.2f,1.2lambda`

D

`1.2f,lambda`

Text Solution

Verified by Experts

The correct Answer is:
b
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. The two waves are represented by y(1)= 10^(-6) sin(100t + (x)/(50)+ ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  18. A pulse of a wave train travel s along a stretched string and reaches ...

    Text Solution

    |

  19. Stationary waves are produced in 10 m long stretched string. If the st...

    Text Solution

    |

  20. The equation of a sound wave is y=0.0015sin(62.4x+316t) the wavelength...

    Text Solution

    |