Home
Class 12
PHYSICS
An astronimical telescope is to be desig...

An astronimical telescope is to be designed to hve a magnifying power of 50 in normal adjustment. If the length of the tube is 102 cm, fid the powers of the objective and the eyepiece.

Text Solution

Verified by Experts

The correct Answer is:
1D, 50 D
Promotional Banner

Topper's Solved these Questions

  • OPTICAL INSTRUMENTS

    SL ARORA|Exercise Problems from Competitive Examination|3 Videos
  • MAGNETISM

    SL ARORA|Exercise Based on (i) Earth s Magnetism (ii) magnetic field of a bar magnet|60 Videos
  • RAY OPTICS

    SL ARORA|Exercise TYPE I|12 Videos

Similar Questions

Explore conceptually related problems

An astronomical telescope uses lenses of power 10 D and 1 D . What is its magnifying power in normal adjustment ?

An astronomical telescope has a magnifying power of 10 . In normal adjustment, distance between the objective and eye piece is 22 cm . The focal length of objective lens is.

An astronomical telescope has a magnifying power of 10 . In normal adjustment, distance between the objective and eye piece is 22 cm calculate focal length of objective lens.

The focal length of the objective of an astronomical telescope is 1.0 m. If the magnifying power of the telescope is 20, find the focal length of the eyepiece and the length of the telescope for the relaxed eye.

An astronomical telescope has a magnifying power 10. The focal length of eyepiece is 20 cm . The focal length of objective is

If tube length of astronomical telescope is 105 cm and magnifying power is 20 for normal setting, calculate the focal length of objective

SL ARORA-OPTICAL INSTRUMENTS-Problems for self practice
  1. A telescope has an objective of focal length 200 cm and eyepiece of fo...

    Text Solution

    |

  2. A telescope consists of an objective of focal length 50 cm and an eyep...

    Text Solution

    |

  3. An astronimical telescope is to be designed to hve a magnifying power ...

    Text Solution

    |

  4. A telescope has an objective of focal length 30 cm and an eye piece of...

    Text Solution

    |

  5. The focal length of the objective of an astronomical telescope is 1.0 ...

    Text Solution

    |

  6. The diameter of the moon is 3.5 xx 10^(3)km and its distance from the ...

    Text Solution

    |

  7. On seeing with unaided eye, the visual angle of moon at the eye is 0.6...

    Text Solution

    |

  8. A telescope objective lens has a focal length of 100 cm . When the fin...

    Text Solution

    |

  9. A refracting telescope has an objective of focal length 1 m and an eye...

    Text Solution

    |

  10. The eye-piece of an astronomical telescope has focal length of 10 cm. ...

    Text Solution

    |

  11. How would you combine two lenses of focal lengths 25 cm and 2.5 cm to ...

    Text Solution

    |

  12. A terrestrial telescope consists of three convex lenses in row whose f...

    Text Solution

    |

  13. A Galilean telescope is 27 cm long when focussed to form an image at i...

    Text Solution

    |

  14. In a Galileo's telescope the focal lengths of the objective and the ey...

    Text Solution

    |

  15. A reflecting type telescope has a concave reflector of radius of curva...

    Text Solution

    |

  16. Calculate the resolving power of a telescope whose objective has a dia...

    Text Solution

    |

  17. Find the limit of resolution of the human eye taking lambda = 6 xx 10^...

    Text Solution

    |

  18. The objective of a telescope has a diameter of 125 cm. Calculate the s...

    Text Solution

    |

  19. What is the aperture of the objective of a telescope that can be used ...

    Text Solution

    |

  20. Two point objects, separated by a distance of 6 xx 10^(-5) cm, are to ...

    Text Solution

    |