Home
Class 12
PHYSICS
The minimum magnifying power of an astro...

The minimum magnifying power of an astronomial telescope is `M`. If the focal length of its eye-lens is halved, how much times the minimum magnifying power will increase.

A

`M/2`

B

2M

C

3M

D

4M

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION - D)|16 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION - B)|30 Videos

  • PHYSICAL WORLD

    AAKASH INSTITUTE|Exercise ASSIGNMENT (Section-B)|5 Videos

  • SEMICONDUCTOR ELECTRONICS (MATERIAL, DEVICES AND SIMPLE CIRUITS )

    AAKASH INSTITUTE|Exercise Assignment SECTION - D (Assertion & reason type Question)|10 Videos

Similar Questions

Explore conceptually related problems

The minimum magnifying power of an astronomical telescope is M. If the focal length of its eye-lens is halved, the minimum magnifying power will become:

Magnifying power of an astronomical telescope is M.P. If the focal length of the eye-piece is doubled, then its magnifying power will become

Magnifying power of a Galilean telescope is given by

The magnifying power of an astronomical telescope can be increased, if we-

Magnifying power of a telescope is

If the focal length of the ey piece of the telescope is doubled, then its magnifying power (m) will be

The magnifying power of a telescope can be increased

The magnifying power of an astronomical telescope is 5, the focal power of its eye piece is 10 diopters. The focal power of its objective (in diopters) is

Define magnifying power and resolving power of a telescope.

AAKASH INSTITUTE-RAY OPTICS AND OPTICAL INSTRUMENTS-ASSIGNMENT (SECTION - C)
  1. The focal lengths of a converging lens measured for violet, green and ...

    Text Solution

    |

  2. A luminous object is placed at a distance of 30 cm from the convex len...

    Text Solution

    |

  3. A plano-convex lens is made of refractive index 1.6. The radius of cur...

    Text Solution

    |

  4. For a plane convex lens (mu= 1.5) has radius of curvature 10 cm. It i...

    Text Solution

    |

  5. A bubble in glass slab (mu = 1.5) when viewed from one side appears at...

    Text Solution

    |

  6. A body is located on a wall. Its image of equal size is to be obtained...

    Text Solution

    |

  7. A convex lens is dipped in a liquid whose refractive index is equal to...

    Text Solution

    |

  8. Which of the following is incorrect?

    Text Solution

    |

  9. A double concave thin lens made out of glass (mu=1.5) have radii of cu...

    Text Solution

    |

  10. A convex lens forms a real image 16 mm long on a screen. If the lens i...

    Text Solution

    |

  11. A point object is moving with speed u(0) at a position somewhere betwe...

    Text Solution

    |

  12. The minimum magnifying power of an astronomial telescope is M. If the ...

    Text Solution

    |

  13. An object is placed in front of two convex lenses one by one at a dist...

    Text Solution

    |

  14. If R(1)andR(2) are the radii of curvature of the spherical surfaces of...

    Text Solution

    |

  15. The focal length of a thin lens in vacuum is f. If the material of the...

    Text Solution

    |

  16. To increase the magnifying power of telescope ( f(o) = focal length ...

    Text Solution

    |

  17. An astronomical telescope of ten-fold angular magnification has a leng...

    Text Solution

    |

  18. Ray optics is valid, when characteristic dimensions are

    Text Solution

    |

  19. The blue colour of the sky is due to

    Text Solution

    |

  20. v34

    Text Solution

    |