Home
Class 12
PHYSICS
If a source of light is moving away from...

If a source of light is moving away from a stationary observer, then the frequency of light wave appears to change because of

A

Doppler's effect

B

interference

C

diffraction

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • WAVE MOTION

    NIKITA PUBLICATION|Exercise Multiple Choice Questions|364 Videos

Similar Questions

Explore conceptually related problems

If the source is moving away from the observer, then the apparent frequency …………..

When the source is moving towards the stationary observer, the apparent frequency is given by

When a source of light is receding away from an observer, then the spectral lines will get displaced towards

When a source of frequency n is receding away from a stationary observer with velocity v, then the apparent change in frequency due to Doppler’s effect is found to be Delta n_(1) and when the observer is reducing from a stationary source with the same velocity v, then the apparent change in frequency is Delta n_(2) , then -

A source producing sound of frequency 340 Hz is moving away from a stationary observer with a velocity of 34 ms^(-1) . The apparent change in wavelength of sound heard by the observer is (V = 340 ms^(-1))

If a source of frequency n moving with velocity v crosses a stationary observer, then the change in the frequency of sound heard by the observer will be (velocity of sound = V)

When a source of sound moves towards a stationary observer the pitch of sound will appear to

when a source is going away from a stationary observer with the velocity equal to that of sound in air , then the frequency heard by observer is n times the original frequency . The value of n is

When a source moves away from a stationary observer, the frequency is (6)/(7) times the original frequency. Given: speed of sound =330(m)/(s) . The speed of the source is

When the light source is moving towards an observer,

NIKITA PUBLICATION-WAVE THEORY OF LIGHT -Multiple Choice Questions
  1. When light travels from an optically rarer medium to an optically dens...

    Text Solution

    |

  2. A ray of light of wavelength lambda is incident on mirror at an angle ...

    Text Solution

    |

  3. If a source of light is moving away from a stationary observer, then t...

    Text Solution

    |

  4. The first successful astronomical determination of speed of light was ...

    Text Solution

    |

  5. The first laboratory determination of the speed of light was made by

    Text Solution

    |

  6. Velocity of electromagnetic waves in a medium depends upon

    Text Solution

    |

  7. A ray is incident at an angle 38^(@) an a mirror. The angle between no...

    Text Solution

    |

  8. Waves that cannot be polarised are

    Text Solution

    |

  9. Ordinary light is

    Text Solution

    |

  10. An unpolarised beam of transverse waves is one whose vibrations

    Text Solution

    |

  11. The transverse nature of light is shown by

    Text Solution

    |

  12. The polarisation of an electromagnetic wave is determined by

    Text Solution

    |

  13. In plane polarised light, plane containing electric vector is called p...

    Text Solution

    |

  14. Through which character we can distiguish the light waves from sound w...

    Text Solution

    |

  15. In which of the following phenomena, colours are not produced, if whit...

    Text Solution

    |

  16. Light can not be polarised by

    Text Solution

    |

  17. When the analyser is rotated to complete one rotation, one observes

    Text Solution

    |

  18. A polariser in used to

    Text Solution

    |

  19. When the polariser and analyser are in the crossed position the intens...

    Text Solution

    |

  20. Which of the following can not be polarised ?

    Text Solution

    |