Home
Class 12
PHYSICS
In Cassegrainian telescope, objective le...

In Cassegrainian telescope, objective lens is………by………… .

Text Solution

Verified by Experts

replaced , large concave mirror.
Promotional Banner

Topper's Solved these Questions

  • OPTICS

    PRADEEP|Exercise Problems for practice|4 Videos

  • OPTICS

    PRADEEP|Exercise Comprehension 1|1 Videos

  • OPTICS

    PRADEEP|Exercise Value based questions|3 Videos

  • MAGNETIC EFFECT OF CURRENT AND MAGNETISM

    PRADEEP|Exercise Competition Focus (Multiple Choice Questions)|2 Videos

Similar Questions

Explore conceptually related problems

In a Cassegrainian telescope, ……………………. is a large concave mirror.

A Cassegrainian telescope uses two mirrors as shown in Fig. Such a telescope is built with the mirrors 20 mm apart. If the radius of curvature of large mirror is 220 mm and the small mirror is 40 mm , where will the final image of an object at infinity be ?

What is the resolving power of a telescope whose objective lens has a diameter 1.22 m from a wavelength 4000 Å?

An astronomical telescope has objective and eye-piece lens of powers 0.5 D and 20 D respectively, its magnifying power will be

Calculate the limit of resolution of a telescope objective lens having a diameter of 200 cm, if it has to detect light of wavelength 500 nm coming from a star.

In normal adjusment of telescope, final image is……. . And distance between objective lens and eye lens is………. .

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

PRADEEP-OPTICS-Exercise
  1. In an astronomical telescope, the distance between……….and…….can be var...

    Text Solution

    |

  2. In normal adjusment of telescope, final image is……. . And distance bet...

    Text Solution

    |

  3. In Cassegrainian telescope, objective lens is………by………… .

    Text Solution

    |

  4. The far point of a myopic person is 150 cm in front of the eye. Calcul...

    Text Solution

    |

  5. A short sighted person is wearing specs of power -3.5 D. His doctor pr...

    Text Solution

    |

  6. A short sighted person cannot see clearly beyond 2 m. Calculate power ...

    Text Solution

    |

  7. A myopic person can see things clearly only when they lie between 10 c...

    Text Solution

    |

  8. A person cannot see the objects distinctly, when placed at a distance ...

    Text Solution

    |

  9. The distance of distinct vision of a person is 50 cm. He wants to read...

    Text Solution

    |

  10. A person can see the objects lying between 25 cm and 10 m from his eye...

    Text Solution

    |

  11. A person has normal far point (infinity) and normal near point (25 cm)...

    Text Solution

    |

  12. An object is to be seen through a simple microscope of power 10 D. Whe...

    Text Solution

    |

  13. A simple microscope is rated 5 X for a normal relaxed eye. What will b...

    Text Solution

    |

  14. The focal lengths of the objective and eye piece of a microscope are 2...

    Text Solution

    |

  15. The focal lengths of the eye piece and objective of a compound microsc...

    Text Solution

    |

  16. A convex lens of focal length 5 cm is used as a simple microscope. Wha...

    Text Solution

    |

  17. A compound microscope has a magnifying power 30. The focal length of i...

    Text Solution

    |

  18. A compound microscope is made using a lens of focal 10 mm as objective...

    Text Solution

    |

  19. A compound microscope uses an objective lens of focal length 4 cm and ...

    Text Solution

    |

  20. The total magnification produced by a compound microscope is 20. The m...

    Text Solution

    |