Home
Class 12
PHYSICS
The velocity of a moving galaxy is 300 k...

The velocity of a moving galaxy is 300 km `s^(-1)` and the apparent change in wavelengtth of a spectral line emitted form the glalxy is observed as 0.5 nm. Then, the actual wavelength of the spectral line is

A

3000 Å

B

5000Å

C

6000 Å

D

4500 Å

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • WAVE THEORY OF LIGHT

    TARGET PUBLICATION|Exercise EVALUATION TEST|20 Videos

  • WAVE THEORY OF LIGHT

    TARGET PUBLICATION|Exercise CRITICAL THINKING|43 Videos

  • WAVE MOTION

    TARGET PUBLICATION|Exercise MCQ 7.1|61 Videos

Similar Questions

Explore conceptually related problems

The wavelength of a spectral line is 480 nm. What is its value in mn?

The wavelength of a spectral line emmited by hydrogen atom in the lyman series is 16//5R cm. what is the value of n_(2)

The wavelength of spectral line coming from a distant star shifts from 600 nm to 600.1 nm. The velocity of the star relative to earth is

A star emits a light of wavelength I and it is receding from the earth with a velocity v_(s) . The shift in wavelength of spectral line observed on earth is

The wavelength of a spectral line of cesium is 460 nm. Calculate the frequency of the line.

A star is moving towards the earth with a speed of 9 xx 10^(6) m//s . If the wavelength of a particular spectral line emitted by star is 600 nm , find the apparent wavelength.

The wavelength of a spectral line emitted due to the transition of electron from outer stationary orbit to inner stationary orbit is given by

The spectral line of wavelength lambda=5000 Å in the light coming from a distant star is observed as 5200 Å.Determine the recession velocity of the star.

TARGET PUBLICATION-WAVE THEORY OF LIGHT -COMPETITIVE THINKING
  1. The polarising angle of glass is 57^(@) . A ray of light which is inci...

    Text Solution

    |

  2. The Brwster angle of the glass-air interface is 54.74^(@). If a ray ...

    Text Solution

    |

  3. A ray of lighyt is incident at an angle I on a glass slab of refractiv...

    Text Solution

    |

  4. The polarising angle the transparent medium is 'theta' and 'v' is ...

    Text Solution

    |

  5. Light is incident at an angle i on a glass slab. The reflected ray is...

    Text Solution

    |

  6. The angle of incidence at which reflected light is totally polarized f...

    Text Solution

    |

  7. The ralation between the polarising angle and the critical angle is

    Text Solution

    |

  8. The angle of polarisation for any medium is 60^@. What will be critica...

    Text Solution

    |

  9. A ray of light travelling in impure water is incident on a glass plate...

    Text Solution

    |

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

    Text Solution

    |

  11. A star is moving away form the earth with a velocvity of 100 km/s. the...

    Text Solution

    |

  12. The velocity of a moving galaxy is 300 km s^(-1) and the apparent chan...

    Text Solution

    |

  13. The 6563 Å line emitted by hydrogen atom in a star is found to be red ...

    Text Solution

    |

  14. An observer is moving with half the speed of light towards a stationar...

    Text Solution

    |

  15. On a hot summer night, the refractive index of air is smallest near th...

    Text Solution

    |

  16. A light has amplitude A and angle between analyser and polariser is 60...

    Text Solution

    |

  17. The refractive index of glass w.t.r. a medium is 4/3 . If vm - mE = 6....

    Text Solution

    |

  18. Light enters from air into a medium of R.I. 1.5. What is the percenta...

    Text Solution

    |

  19. The angle of incedence is fornd to be twice the angle of reraction whe...

    Text Solution

    |

  20. How fast a person should drive his car so that the red signal fo light...

    Text Solution

    |