Home
Class 12
PHYSICS
You are given two convex lenses of focal...

You are given two convex lenses of focal lengths 10 cm and 60 cm. To make a telescope, which of the two lenses will you use as object lens and which one as eye lens ?

Text Solution

AI Generated Solution

To determine which lens to use as the object lens and which one as the eye lens in a telescope, we need to consider the focal lengths of the two convex lenses provided: 1. **Identify the Focal Lengths**: - Lens 1 (Focal Length, \( F_1 \)): 10 cm - Lens 2 (Focal Length, \( F_2 \)): 60 cm 2. **Understanding the Role of Lenses in a Telescope**: - In a telescope, we typically use two lenses: the objective lens and the eyepiece (eye lens). ...
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    MODERN PUBLICATION|Exercise Revision Exercises (Additional Questions)|22 Videos
  • RAY OPTICS AND OPTICAL INSTRUMENTS

    MODERN PUBLICATION|Exercise Revision Exercises (Fill in the Blanks)|10 Videos
  • RAY OPTICS AND OPTICAL INSTRUMENTS

    MODERN PUBLICATION|Exercise Higher Order Thinking Skills & Advanced Level (QUESTIONS WITH ANSWERS)|20 Videos
  • NUCLEI

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST FOR BOARD EXAMINATION|15 Videos
  • SEMICONDUCTOR ELECTRONICS METERIALS DEVICES AND SIMPLE CIRCUITS

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST FOR BOARD EXAMINATION|12 Videos

Similar Questions

Explore conceptually related problems

You are given two convex lenses of focal lengths 5 cm and 25 cm. Which one of these would you like to use as an objective in a telescope? Give reasons for your answer.

How are power and focal length of a lens related ? You are provided with two lenses of focal length 20 cm and 40 cm respectively. Which lens will you use to obtain more convergent light ?

Two convex lenses of focal length 10 cm each are combined. What will be the focal length of the combined lens ?

How would you combine two lenses of focal lengths 25 cm and 2.5 cm to make a telescope ? What is the magnifying power of this telescope ?

How would you combine two lenses of focal lengths 25 cm and 2.5 cm to make a telescope ? What is the magnifying power of this telescope ?

Two concave lenses each of focal length 30 cm are placed in contact. What is focal of the compound lens ?

Two plano-convex lenses of focal lengths 20cm and 30cm are placed together to form a double convex lens. The final focal length will be

You are given the following 3 lenses. Two construct an astronomical telescope which one will you used as eyepiece and which one as objective?

MODERN PUBLICATION-RAY OPTICS AND OPTICAL INSTRUMENTS-Revision Exercises (Very Short Answer Questions)
  1. What is the effect of change of medium on the wavelength of light ?

    Text Solution

    |

  2. A person is not able to see vertical wires clearly in a grid of wires....

    Text Solution

    |

  3. What are the possible causes of hypermetropia ?

    Text Solution

    |

  4. What are the possible causes of myopia.

    Text Solution

    |

  5. Which lens is used for the correction of hypermetropia ? And why ?

    Text Solution

    |

  6. Which lens is used for the correction of myopia and why ?

    Text Solution

    |

  7. What are the far point and near point of the human eye with no...

    Text Solution

    |

  8. Which lens is used for the correction of presbyopia ?

    Text Solution

    |

  9. What is the difference between microscope and telescope ?

    Text Solution

    |

  10. What is meant by linear magnification?

    Text Solution

    |

  11. Write the ray diagram for formation of image in the simple microscope.

    Text Solution

    |

  12. The magnifying power of a compound microscope is

    Text Solution

    |

  13. Derive lens maker's formula for a thin convex lens.

    Text Solution

    |

  14. What do you understand by normal adjustment of a telescope ?

    Text Solution

    |

  15. Write the formula for magnifying power and length of tube of an astron...

    Text Solution

    |

  16. Objective of a compound microscope should have small focal length. Why...

    Text Solution

    |

  17. Can a microscope function as a telescope by inverting it. Can a telesc...

    Text Solution

    |

  18. Why is the aperture of objective lens of a telescope taken large ?

    Text Solution

    |

  19. You are given two convex lenses of focal lengths 10 cm and 60 cm. To m...

    Text Solution

    |

  20. What will be the effect on the intensity of the image if the diameter ...

    Text Solution

    |