Home
Class 12
PHYSICS
The apparent wavelength of the light fro...

The apparent wavelength of the light from a star, moving away from the earth is `0.01%` more than its real wavelength. The speed of the star with respect to earth is

A

60 km/sec

B

15 km/sec

C

150 km/sec

D

30 km/sec

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • WAVE OPTICS

    ERRORLESS |Exercise wave Nature and Interference of Light|1 Videos
  • WAVE OPTICS

    ERRORLESS |Exercise Doppler s Effect of Light|1 Videos
  • RAY OPTICS

    ERRORLESS |Exercise SET|25 Videos

Similar Questions

Explore conceptually related problems

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

As light from a far off star comes down towards the earth :

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

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 :

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)

Light coming from a star is observed to have a wavelength of 3737 Å , while its real wavelength is 3700 Å . The speed of the star relative to the earth is [Speed of light 3 xx 10^(8) m//s ]

The wavelength of light coming from a distant galaxy is found to be 0.5% more than that coming from a source on earth. Calculate the velocity of galaxy.

Astronomers have observed that light coming from far away starts do not show the same spectrum as observed on Earth. Each wavelength is shifted slightly towards the red end of the spectrum. It is observed that the 1^(st) line of Lyman series shows 121 nm on Earth, but from the star it shows 122nm. The speed of the star with respect to Earth is close to

ERRORLESS -WAVE OPTICS-SET
  1. The apparent wavelength of the light from a star, moving away from the...

    Text Solution

    |

  2. Following figures shows sources S1 and S2 that emits light of waveleng...

    Text Solution

    |

  3. In a Young's double slit experimental arrangement shown here, if a mic...

    Text Solution

    |

  4. In the set up shown in figure, the two slits S1 and S2 are not equidis...

    Text Solution

    |

  5. The intensity ratio of two coherent sources of light is p. They are i...

    Text Solution

    |

  6. Three waves of equal frequency having amplitudes 10mum, 4mum, 7mum arr...

    Text Solution

    |

  7. Four different independent waves are represented by (i) y(1) = a(1) ...

    Text Solution

    |

  8. A beam of light consisting of two wavelength 650nm and 520nm is used t...

    Text Solution

    |

  9. Two identical radiators have a separation of d=lambda//4 where lambda ...

    Text Solution

    |

  10. In Young’s double slit experiment, the 8 th maximum with wavelength la...

    Text Solution

    |

  11. Light of wavelength 500nm is used to form interference pattern in Youn...

    Text Solution

    |

  12. Two coherent sources of equal intensity produce maximum intensity of 1...

    Text Solution

    |

  13. The path difference between two interfering waves of equal intensities...

    Text Solution

    |

  14. In a Young's double slit experiment, I0 is the intensity at the centra...

    Text Solution

    |

  15. In a Fresnel’s diffraction arrangement, the screen is at a distance of...

    Text Solution

    |

  16. If n represents the order of a half period zone, the area of this zone...

    Text Solution

    |

  17. A screen is placed 50 cm from a single slit, which is illuminated with...

    Text Solution

    |

  18. In Young's double slit experiment, the fringes are displaced index 1.5...

    Text Solution

    |

  19. Two waves of equal amplitude and frequency interfere each other. The r...

    Text Solution

    |

  20. In Young's double-slit experiment , we get 60 fringes in the field of ...

    Text Solution

    |

  21. A parallel- plate capacitor with plate area A and separation between t...

    Text Solution

    |