Home
Class 12
PHYSICS
A star is going away from the earth. An ...

A star is going away from the earth. An observer on the earth will see the wavelength of light coming from the star

A

decreased

B

increased

C

neither decreased nor increased

D

decreased or increased depending upon the velocity of the star

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • WAVE OPTICS

    NARAYNA|Exercise Exercise - 1 (C.W) Interference|15 Videos

  • WAVE OPTICS

    NARAYNA|Exercise Exercise - 1 (C.W) Diffraction|2 Videos

  • WAVE OPTICS

    NARAYNA|Exercise C . U . Q (Resolving power)|3 Videos

  • SEMICONDUCTOR ELECTRONICS

    NARAYNA|Exercise ADDITIONAL EXERCISE (ASSERTION AND REASON TYPE QUESTIONS :)|19 Videos

Similar Questions

Explore conceptually related problems

A star is moving away from the obsever on the Earth with a speed of 400 km/s. What will be the Doppler shift if the wavelength of light emitted by the star is 5800 Å ?

Earth is moving towards a fixed star with a velocity of 30 kms^(-1) . An oberver on earth observes a shift of 0.58 Å in wavelength of light coming from star. What is the actual wavelength of light emitted by star ?

star emitting light of wavelength 5896 Å is moving away from the earth with a speed of 3600 km / sec . The wavelength of light observed on earth will ( c= 3 xx 10 ^(8) m//sec is the speed of light)

Name the star nearest to the Earth.

A star is moving away from earth and shift in spectral line of wavelength 5700 Å is 1.90 Å . Velocity of the star is :

The apparent wavelength of light from a star moving away from the earth is 0.02% more than the actual wave length. What is the velocity of star

Due to the relative motion between a star and the earth, the following relation is obtained between the wavelength of light from star lambda and Doppler displacement Delta lambda, (V_(s) = "celocity of star")

NARAYNA-WAVE OPTICS-C . U . Q (Polarisation)
  1. Choose the correct statement .

    Text Solution

    |

  2. The polarising angle for glass is

    Text Solution

    |

  3. When an unpolarised light is polarized, then the intensity of light of...

    Text Solution

    |

  4. Unpolarised light is incident on two polarizing sheets which are so or...

    Text Solution

    |

  5. When light falls on two polaroid sheets, one observes complex brightne...

    Text Solution

    |

  6. Polaroid are used

    Text Solution

    |

  7. A diffraction pattern is obtained using a beam of redlight. What happe...

    Text Solution

    |

  8. In a diffraction pattern the width of any fringe is

    Text Solution

    |

  9. Yellow light is used in a single slit of diffraction experiment with s...

    Text Solution

    |

  10. A star is going away from the earth. An observer on the earth will see...

    Text Solution

    |

  11. Red shift is an illustration of

    Text Solution

    |

  12. If the shift of wavelength of light emitted by a star is towards viole...

    Text Solution

    |

  13. When there is a relative motion of an observer from a source of light,...

    Text Solution

    |

  14. In the context of Doppler effect in light, the term red shift signifie...

    Text Solution

    |

  15. As we change the colour of light from Red to Blue, which of the follow...

    Text Solution

    |

  16. Atmospheric refraction is due to

    Text Solution

    |

  17. Which of the following phenomenon is not common to sound and light wav...

    Text Solution

    |

  18. Polarisation can be produced by

    Text Solution

    |

  19. An unpolarised light is incident on a surface separating two transpare...

    Text Solution

    |

  20. The intensity of the polarized transmitted through the analyzer is giv...

    Text Solution

    |