Home
Class 12
PHYSICS
An isotropic stationary source is emitti...

An isotropic stationary source is emitting waves of frequency n and wind is blowing due north. An observer A is on north of the source while observer B is on south the source. IF both the observers are stationary, then

A

frequency received by A is greater than n

B

frequency received by B is less than n

C

frequency received by A is equal to that received by B

D

frequency received by A and B cannot be calculated unless velocity of waves in still air and velocity of wind are known

Text Solution

Verified by Experts

The correct Answer is:
C

There is no effect of doppler effect .
Promotional Banner

Topper's Solved these Questions

  • MAJOR TEST 8

    NEET MAJOR TEST (COACHING)|Exercise PHYSICS|45 Videos
  • NEET 2020 TEST 5

    NEET MAJOR TEST (COACHING)|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

Stationary Source And Moving Observer

An observer is moving towards the stationary source of sound, then

A source of sound emitting a note of frequency 200 Hz moves towards an observer with a velocity v equal to the velocity of sound. If the observer also moves away from the source with the same velocity v, the apparent frequency heard by the observer is

A fixed source of sound emitting a certain frequency appears as f_(a) when the observer is apporoaching the source with upsilon_(0) and f_(r) when the observer recedes from the source with the same speed. The frequency of source is

A source emitting a sound of frequency v is placed at a large distance from an observer. The source starts moving towards the observer with a uniform acceleration a. Find the frequency heard by the observer corresponding to the wave emitted just after the source starts. The speed of sound in the medium is v.

An observer starts moving with uniform acceleration a towards a stationary sound source emitting a whistle of frequency n . As the observer approaches source, the apparent frequency, head by the observer varies with time as

A source of frequency 1 kHz is moving towards a stationary observer with velocity of 0.9 times that of sound. What is the frequency heard by the observer ?

A sound source emitting sound of frequency 450 Hz is approaching a stationary observer with velocity 30 ms^(-1) and another identical source is going away from the observer with the same velocity. If the velocity of sound is 330 ms^(-1) , then the difference of frequencies heard by observer is

NEET MAJOR TEST (COACHING)-MAJOR TEST 9-PHYSICS
  1. In the following circuit find l1 and l2 :-

    Text Solution

    |

  2. The count rate for 10 gm of radioactive material was measured at diffe...

    Text Solution

    |

  3. An isotropic stationary source is emitting waves of frequency n and wi...

    Text Solution

    |

  4. The depth of a lake at which density of water is 2% greater than on su...

    Text Solution

    |

  5. At a pressure of 24 xx 10^(5) dyne cm^(-2). The volume of O(2) is 10 l...

    Text Solution

    |

  6. A metal sphere is hung by a string fixed to a wall. The sphere is push...

    Text Solution

    |

  7. A particle of mass 6.4xx10^(-27) kg and charge 3.2xx10^(-19)C is situ...

    Text Solution

    |

  8. A parallel plate capacitor with air between the plates has capacitance...

    Text Solution

    |

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

    Text Solution

    |

  10. A ray of light passes through an equilateral glass prism in such a man...

    Text Solution

    |

  11. You measure two quantities as A=1.0m+-0.2m,B=2.0m+-0.2m. We should rep...

    Text Solution

    |

  12. The dimensions of a block are (1 cm × 1 cm × 100 cm) the specific resi...

    Text Solution

    |

  13. Two uniform rods of equal length but different masses are rigidly join...

    Text Solution

    |

  14. A beam of light strikes a surface at angle of incidence of 60^(@) and...

    Text Solution

    |

  15. 64 drops of water are combined to form one big drop. Surface energy of...

    Text Solution

    |

  16. In an inductor of inductance L=100mH, a current of I=10A is flowing. T...

    Text Solution

    |

  17. A particle has a mass 400 times than that of the elctron and charge is...

    Text Solution

    |

  18. A 2 kg copper block is heated to 500^@C and then it is placed on a lar...

    Text Solution

    |

  19. Two ring of mass m and 2 m are connected with a massless spring and ca...

    Text Solution

    |

  20. Ratio between total intensity of magnetic field at equator to poles is

    Text Solution

    |