Home
Class 12
PHYSICS
A telescope is used to resolve two stars...

A telescope is used to resolve two stars separated by `4.6xx10^(-6)` rad. If the wavelength of light used is `5460 Å` , what should be the aperture of the objective of the telescope ?

A

`0.448m`

B

`0.1448m`

C

`1.1448m`

D

`0.011m`

Text Solution

Verified by Experts

The correct Answer is:
B

The aperture (a) of the telescope is given as
`a = (1.22lambda)/(theta)`
Promotional Banner

Topper's Solved these Questions

  • WAVE OPTICS

    NARAYNA|Exercise LEVEL - II(H.W)|19 Videos
  • WAVE OPTICS

    NARAYNA|Exercise Example|70 Videos
  • WAVE OPTICS

    NARAYNA|Exercise LEVEL - VI|40 Videos
  • SEMICONDUCTOR ELECTRONICS

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

Similar Questions

Explore conceptually related problems

A telescope can resolve two stars separated by 4.6 xx 10^(-6) radian . If wavelength of light used is 5460 Å , what is the aperture of the objective of telescope ?

A telescope is used to resolve two stars having an angular separation of 3.66xx10^(-6) radian. What is the diameter of the objective of the telescope if monochromatic light of wavelength 6000 Å is used?

The diameter of the lens of a telescope is 0.61 m and the wavelength of light used is 5000 Å. The resolution power of the telescope is

A telescop with an objective aperture 0.25 m is uded to obseve two stars. If the wavelength of light used is 5000Å . Find the minimum angular sepration between them.

Calculate the resolving power of a microscope if its numerical aperture is 0.12 and wavelength of light used is 6000 Å .

If the wavelength of light used is 6000 Å. The angular resolution of telescope of objective lens having diameter 10 cm is ______ rad.

Two stars are situated at a distance of 8 light years from the earth. These are to be just resolved by a telescope of diameter 0.25 m. If the wavelength of light used is 5000 Å, then the distance between the stars must be

A telescope, whose objective lens has an apertune of 1 mm for the wavelength of light 500 A, then limiting resolving power of the telescope is

The aperrture of the largest telescope in the world is about 5 m. if the separation between the moon and the earth is 4xx10^(5)km and the wavelength of visible light is 5000 Å, then the minimum separation between the objects on the surface of the moon which can be just resolved is approximately equal to

NARAYNA-WAVE OPTICS-LEVEL - I(H.W)
  1. The displacements of two interfering light waves are y(1) = 2sin omeg...

    Text Solution

    |

  2. The intensity ratio of two waves is 9:1. If they produce interference,...

    Text Solution

    |

  3. Two beams of ligth having intensities I and 4I interface to produce a ...

    Text Solution

    |

  4. The maximum intensity in Young's double slit experiment is I(0) . What...

    Text Solution

    |

  5. In Young's double-slit experiment, 30 fringes are obtained in the fiel...

    Text Solution

    |

  6. The separation between successive fringes in a double slit arrangement...

    Text Solution

    |

  7. In the Young's double slit experiment , a mica slip of thickness t and...

    Text Solution

    |

  8. In Young's double slit experiment, the 10th maximum of wavelength lamb...

    Text Solution

    |

  9. Two coherent monochormatic light source are located at two vertices of...

    Text Solution

    |

  10. Light of wavelength 6000 A^(@) is incident on a single slit. The first...

    Text Solution

    |

  11. A plane wave of wavelength 6250 Å is incident normally of the principa...

    Text Solution

    |

  12. The distance between the first and the sixth minima in the diffraction...

    Text Solution

    |

  13. The diameter of an objective of a telescope, which can just resolve tw...

    Text Solution

    |

  14. A telescope is used to resolve two stars separated by 4.6xx10^(-6) rad...

    Text Solution

    |

  15. Two point sources distant 0.1 meter away viewed by a telescope. The ob...

    Text Solution

    |

  16. Two polaroids are kept crossed to each other. Now one of them is rotat...

    Text Solution

    |

  17. The amplitude of polarised light transmitted through a polariser is A....

    Text Solution

    |

  18. Unpolarised light of intensity 32 W//m^(2) passes through a polariser ...

    Text Solution

    |

  19. The critical angle of a transparent crystal is 60^(@). Then its polari...

    Text Solution

    |

  20. When an unpolarized light of intensity I0 is incident on a polarizing ...

    Text Solution

    |