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

A telescope is used to resolve two stars having an angular separation of `3.66 xx 10^-6` radian. What is the diameter of the objective of the telescope if monochromatic light of wavelength 6000 A is used ?

A

10 cm

B

20 cm

C

25 cm

D

30 cm

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • NUCLEI

    MBD PUBLICATION|Exercise QUESTION BANK|114 Videos
  • OSCILLATIONS

    MBD PUBLICATION|Exercise Question Bank|225 Videos

Similar Questions

Explore conceptually related problems

What is the energy in joule of a photon of light with wavelength 4.0xx10^3 nm ?

In a two-slit experiment using monochromatic light, fringes are observed on a screen at a distance from the slits. The screen is moved by 5 xx 10^-2 m towards the slits and the change in fringe width is found to be 3 xx 10^-5 m. The distance between the slits is 10^-3 m. Find the wavelength of the monochromatic light used.

MBD PUBLICATION-OPTICAL INSTRUMENTS-QUESTION BANK
  1. If the blue light is replaced by red light illuminating the object in ...

    Text Solution

    |

  2. Which colour will give maximum resolving power for a telescope ?

    Text Solution

    |

  3. A telescope is used to resolve two stars having an angular separation ...

    Text Solution

    |

  4. Two points separated by a distance of 0.1 mm can just be separated by ...

    Text Solution

    |

  5. What is the resolving power of a telescope, for light of wavelength 50...

    Text Solution

    |

  6. Wavelength of light used in an optical instrument are lamda1 = 4500 A ...

    Text Solution

    |

  7. The limit of resolution of a 100 cm telescope for lamda = 5000 A is ap...

    Text Solution

    |

  8. If the numerical aperture of a microscope is increased then its :

    Text Solution

    |

  9. The objective of a microscope is first illuminated with blue light. Th...

    Text Solution

    |

  10. The resolution limit of a normal human eye is 1 minute. A person wants...

    Text Solution

    |

  11. Wavelengths of light used in an optical instrument are lamda1 = 4000 A...

    Text Solution

    |

  12. If the aperture of the objective of a telescope is decreased then its ...

    Text Solution

    |

  13. The resolving power of a telescope depends upon :

    Text Solution

    |

  14. By using light of wavelength 5200 A, two points separated by a distanc...

    Text Solution

    |

  15. What is the resolving power of a telescope whose objective lens has a ...

    Text Solution

    |

  16. What we call the ability of the eye to change the focal length of the ...

    Text Solution

    |

  17. What we name technically long sight?

    Text Solution

    |

  18. A person suffering from defect which cannot focus all lines of an obje...

    Text Solution

    |

  19. How we correct astigmatism by using what?

    Text Solution

    |

  20. Height of the image formed on the retina is directly proportional to?

    Text Solution

    |