Home
Class 12
PHYSICS
For normal vision, eye the least distanc...

For normal vision, eye the least distance of object from eye?

A

30 cm

B

25 cm

C

Infinite

D

40 cm

Text Solution

Verified by Experts

The correct Answer is:
B, C

For normal eye, the least distance of distinct vision is 25 cm.
Promotional Banner

Topper's Solved these Questions

  • OPTICS

    FULL MARKS|Exercise ADDITIONAL QUESITON - II ADDITIONAL PROBLEMS:|11 Videos
  • OPTICS

    FULL MARKS|Exercise TEXTUAL EVALUATION SOLVED V.NUMERICAL PROBLEMS|10 Videos
  • MAGNETISM AND MAGNETIC EFFECTS OF ELECTRIC CURRENT

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED - NUMERICAL PROBLEMS :|4 Videos
  • RECENT DEVELOPMENTS IN PHYSICS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS (Short Answer Question)|6 Videos

Similar Questions

Explore conceptually related problems

If the focal lengths of the objective and eyepiece of a microscope are 2 cm and 5 cm respectively and the distance between them is 20 cm, what is the distance of the object from the objective when the image seen by the eye is 25 cm from eyepiece? Also find the magnifying power.

The angle subtended by a coin of radius 1 cm held at a distance of 80 cm from your eyes is :

In a myopic eye, the image of the object is formed

The focal length of the objective of an astronomical telescope is 75 cm and that of the eyepiece is 5 cm . If the final image is formed at the least distance of distanct of distinct vision from the eye, calculate the magnifying power of the telescope.

A small telescope has an objective lens of focal length 140 cm and eyepiece of focal length 5.0 cm. What is the magnifying power of the telescope for viewing distant objects when (a) the telescope is in normal adjustment and (b) the final image is formed at least distance of distinct vision ?

FULL MARKS-OPTICS-ADDITIONAL QUESITON -( MULTIPLE CHOICE QUESTIONS )
  1. F(1) and F(2) are focal length of objective and eyepiece respectively ...

    Text Solution

    |

  2. Focal length of objective and eyepiece of telescope are 200 cm and 4 ...

    Text Solution

    |

  3. For normal vision, eye the least distance of object from eye?

    Text Solution

    |

  4. The focal length of the objective and eyepiece of a telescope are resp...

    Text Solution

    |

  5. A person cannot clearly see distance more than 40 cm. He is advised to...

    Text Solution

    |

  6. The light gathering power of a camera lens depends on

    Text Solution

    |

  7. Amount of light entering into the camera depends upon

    Text Solution

    |

  8. Line spectrum can be obtained from

    Text Solution

    |

  9. The production of band spectra is caused by

    Text Solution

    |

  10. If two mirrors are kept at 60^(@) to each other and a body is placed...

    Text Solution

    |

  11. A point source kept at a distance of 1000 m has a illumination I. To c...

    Text Solution

    |

  12. A concave mirror of focal length 15 cm forms an image having twice lin...

    Text Solution

    |

  13. When a ray of light enters a glass slab from air

    Text Solution

    |

  14. A light wave of frequency nu and wavelength lambda travels from air ...

    Text Solution

    |

  15. In refraction, light waves are bent on passing from one medium to the ...

    Text Solution

    |

  16. A ray of light having wavelenght 720 nm enters in a glass of refractiv...

    Text Solution

    |

  17. Brilliance of a diamond is due to

    Text Solution

    |

  18. An endoscope is employed by a physician to view the internal parts of ...

    Text Solution

    |

  19. Mirage is formed due to .

    Text Solution

    |

  20. Two lenses of power + 12D and - 2D are combined together. What is thei...

    Text Solution

    |