Home
Class 11
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 X and f respectively. The apparent frequency and wavelength recorded by the observer are respectively

A

`1.2 f, lambda`

B

`f, 1.2 lambda`

C

`0.8 f, 0.8 lambda`

D

`1.2 f, 1.2 lambda`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTORS

    TARGET PUBLICATION|Exercise EXERCISE|147 Videos

  • Thermal Properties of Matter

    TARGET PUBLICATION|Exercise Exercise|259 Videos

Similar Questions

Explore conceptually related problems

A boy moves away from a steady source of sound at a constant speed the sound he hears will

A boy moves away from a steady source of sound at a constant speed. The sound he hears will

When source of sound moves towards a stationary observer, the wavelength of sound received by him

The apparent change in frequency of a sounding source and observer in relative motion is

A source of sound when moves towards a stationary observer, then frequency of the sound heard by listener is more than actual frequency because the

A police car travels towards a stationary observer at a speed of 15 m//s . The siren on the car emits a sound of frequency 250 Hz. Calculate the recorded frequency. The speed of sound is 340 m//s .

When the observer moves towards the stationary source with velocity, 'V_1' , the apparent frequency of emitted note is ‘F_1' . When the observer moves away from the source with velocity ‘V_1’ , the apparent frequency is 'F_2' . If 'V' is the velocity ofsound in air and frac(F_1)(F_2)=2 then frac(V)(V_1)= ?

A source of sound S is moving with a velocity 50 m//s towards a stationary observer. The observer measures the frequency of the source as 1000 Hz. What will be the apparent frequency of the source when it is moving away from the observer after crossing him? The velocity of sound in the medium is 350 m//s .

A source of sound and a listener both are moving in the same direction,the source following the listener. If the respective velocities of sound ,source and listener are v, v_s and v_'//s then the ratio of the actual frequency of the source and the apparent frequency as received by the listener is

TARGET PUBLICATION-Sound-Exercise
  1. A man is watching two trains, one leaving and the other coming in with...

    Text Solution

    |

  2. A police car moving at 22 m//s, chases a motorcyclist. The police man ...

    Text Solution

    |

  3. An observer moves towards a stationary source of sound with a speed 1/...

    Text Solution

    |

  4. The number of waves contained in unit length of the medium is called

    Text Solution

    |

  5. An observer standing at the sea coast observes 54 waves reaching the c...

    Text Solution

    |

  6. The propagation of sound waves is not possible in space because

    Text Solution

    |

  7. In an orchestra, the musical sounds of different instruments are disti...

    Text Solution

    |

  8. A stone is dropped into a lake from a tower 500 metre high. The sound ...

    Text Solution

    |

  9. Consider the following I. Waves created on the surfaces of a water p...

    Text Solution

    |

  10. An earthquake generates both transverse (S) and longitudinal (P) sound...

    Text Solution

    |

  11. A light pointer fixed to one prong of a tuning fork touches a vertical...

    Text Solution

    |

  12. It is possible to distinguish between the transverse and longitudinal ...

    Text Solution

    |

  13. When an aeroplane attains a speed higher than the velocity of sound in...

    Text Solution

    |

  14. It takes 2.0 seconds for a sound wave to travel between two fixed poin...

    Text Solution

    |

  15. Oxygen is 16 times heavier than hydrogen. Equal volumes of hydrogen an...

    Text Solution

    |

  16. A string of mass 2.5 kg is under a tension of 200 N The length of the ...

    Text Solution

    |

  17. Water waves produced by a motor boat sailing in water are

    Text Solution

    |

  18. A man standing between two cliffs claps his hands and starts hearing s...

    Text Solution

    |

  19. When we hear a sound, we can identify its source from .

    Text Solution

    |

  20. Choose the correct option? The distance between two consecutive crest...

    Text Solution

    |