Home
Class 12
PHYSICS
The magnifytion power of the astronomica...

The magnifytion power of the astronomical telescope for normal adjustment is 50cm. The focal length of the eyepiece is 2cm. The required length of the telescope for normal adjustment is

A

102cm

B

100cm

C

98cm

D

25cm

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS

    DC PANDEY|Exercise medical entrance special format question|25 Videos
  • NUCLEI

    DC PANDEY|Exercise C MADICAL ENTRANCES GALLERY|46 Videos
  • REFLECTION OF LIGHT

    DC PANDEY|Exercise Subjective|9 Videos

Similar Questions

Explore conceptually related problems

The length (L) of the astronomical telescope, for normal adjustment is

An astronomical telescope has a magnifying power 10. The focal length of the eye piece is 20 cm. the focal length of the objective is -

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

The length of an astronomical telescope is 40 cm. The focal lengths of its lenses will be

The magnifying power of terrestrial telescope is 25 when it is in normal adjustment and the length of the telescope is 124 cm. If the focal length of the erecting lens is 5 cm, the focal lengths of the objective and the eye-piece are respectively.

DC PANDEY-RAY OPTICS-Medical entrance gallary
  1. The distance of moon form the earth is 3.8xx10^(5) km. Supposing that ...

    Text Solution

    |

  2. A small angled prism of refractive index 1.4 is combined with another ...

    Text Solution

    |

  3. The magnifytion power of the astronomical telescope for normal adjustm...

    Text Solution

    |

  4. The speed of light in media M1 and M2 are 1.5 xx 10^8 m//s and 2.0 xx ...

    Text Solution

    |

  5. Radii of curvature of a canverging lends are in the ration 1:2. Its fo...

    Text Solution

    |

  6. The sun light reaches us as white and not as its components because

    Text Solution

    |

  7. The radius of curvature of the convex face of a plano convex lens is 1...

    Text Solution

    |

  8. Two thin lenses of focal lengths f(1) and f(2) are in contact. The fo...

    Text Solution

    |

  9. The mirror are inclined at angle of 50^(@). The number of images forme...

    Text Solution

    |

  10. If c is the velocity of light in free space, then the time taken by li...

    Text Solution

    |

  11. A beam of light consisting of red, green, and blue colors is incident ...

    Text Solution

    |

  12. A vessel consists of two plane mirrors at right angles as shown in fig...

    Text Solution

    |

  13. For having large magnification power of a compound microscope

    Text Solution

    |

  14. A beam of light is incident on a glass slab (mu = 1.54) in a direction...

    Text Solution

    |

  15. The focal length of lens of refractive index 1.5 in air is 30 cm When ...

    Text Solution

    |

  16. The focal length of a concave mirror is 50cm. Where an object be place...

    Text Solution

    |

  17. The diameter of the eye ball of a normal eye is about 2.5cm. The power...

    Text Solution

    |

  18. Two thin lenses, when in contact, produce a combination of power+10 d...

    Text Solution

    |

  19. A ray of light is incident at small angle I on the surface of prism of...

    Text Solution

    |

  20. A concave mirrorr of focal length f(1) is placed at a distance of d fr...

    Text Solution

    |