Home
Class 12
PHYSICS
If the least distance of distinct vision...

If the least distance of distinct vision is D and focal length of the lens is f then what is the equation for magnification in a simple microscope ?

Text Solution

Verified by Experts

The correct Answer is:
`1+D/f`
Promotional Banner

Topper's Solved these Questions

  • OPTICAL INSTRUMENTS

    CHHAYA PUBLICATION|Exercise Exercise (short Answer Type Questions-I)|1 Videos
  • OPTICAL INSTRUMENTS

    CHHAYA PUBLICATION|Exercise Problem Set -I|16 Videos
  • OPTICAL INSTRUMENTS

    CHHAYA PUBLICATION|Exercise Exercise(Multiple choice questions)|18 Videos
  • Magnetic Properties of Materials

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|11 Videos
  • QUANTUM THEORY

    CHHAYA PUBLICATION|Exercise CBSE Scanner|29 Videos

Similar Questions

Explore conceptually related problems

The focal lengths of objective and eyepiece of a compound microscope are 0.5 cm and 1.5 cm respectively . If the least distance of distinct vision is 25 cm and magnification is 500 then what is the distance between objective and eyepiece?

The least distance of distinct vision of a man is 1m . What type of eye defect does he suffer from ?

If in a plano-convex lens, the radius of curvature of the convex surface is 10cm and the focal length of the lens is 30cm, then what is the refractive index of the material of lens ?

An object is placed at a distance of 5 cm from the objective of a compound microscope . If the final image is formed at the least distance of distinct vision and coincides with the object then calculate the focal lengths of the objective and the eyepiece . given that the least distance of distinct vision =25 cm and the magnifying power of the instrument = 15 cm.

The distance between an object and a divergent lens is m times the focal length of the lens. The linear magnification produced by the lens is

The length of an object is 5 cm. An image of length 10cm is obtained when it is placed at a distance of 2 cm in front of a convex lens. What is the linear magnification and image distance?

The magnifying power of an astronomical telescope for normal vision is 10 . The focal length of the objective is 20 cm . What will be the magnifying power for focussing the final image formed at a distance of 25 cm from the eyepiece ?

CHHAYA PUBLICATION-OPTICAL INSTRUMENTS-Exercise (Very short Answer Type Questions)
  1. For a normal eye the least distance of distinct vision is …….. Fill in...

    Text Solution

    |

  2. Vision of normal eye ranges from …… to ……… fill in the blanks.

    Text Solution

    |

  3. How can the defect of astigmatism be corrected ?

    Text Solution

    |

  4. The minimum distance of distinct vision for a person is 1m . What eye...

    Text Solution

    |

  5. …… is the eye -defect which old people usually suffer from fill in th...

    Text Solution

    |

  6. Cylindrical lens are used as a remedy for … fill in the blank.

    Text Solution

    |

  7. For long -sightedness , …… lens should be used [fill in the blank ].

    Text Solution

    |

  8. For short-sightedness , ….. Lens should be used fill in the the blank...

    Text Solution

    |

  9. If the least distance of distinct vision is D and focal length of th...

    Text Solution

    |

  10. If the length of the tube of a compound microscope is increased , the ...

    Text Solution

    |

  11. If the focal length of a microscope is small , magnification is ……[ fi...

    Text Solution

    |

  12. To increase magnification of a compound microscope , the objective and...

    Text Solution

    |

  13. In what type of telescope is the final image erect ?

    Text Solution

    |

  14. What is used for the objective of a reflecting telescope ?

    Text Solution

    |

  15. Write the names of two ordinary types of the telescope.

    Text Solution

    |

  16. Is the length of the instrument to be changed if the focal length of ...

    Text Solution

    |

  17. In an astronomical telescope , the focal length and the aperture of th...

    Text Solution

    |

  18. The final image is an astronomical telescope is …….and ……..with respec...

    Text Solution

    |

  19. The final image in a terrestrial telescope is ……….and ……….with respect...

    Text Solution

    |

  20. In Galileo's telescope , the objective is …..lens but the eyepiece is ...

    Text Solution

    |