Home
Class 11
PHYSICS
If the object is placed at A and the ima...

If the object is placed at A and the image is formed at B when the rays are refracted through a convex lens. The position. Of A and B are changeable. Such pair of is called.

A

pair of focal points.

B

pair of object and focal points.

C

conjugate foci.

D

pair of foci.

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS

    TARGET PUBLICATION|Exercise CRITICALTHINKING|38 Videos

  • RAY OPTICS

    TARGET PUBLICATION|Exercise COMPETITIVE THINKING|68 Videos

  • OPTICS

    TARGET PUBLICATION|Exercise EXERCISE|447 Videos

  • REFRACTION OF LIGHT

    TARGET PUBLICATION|Exercise EVALUATION TEST|15 Videos

Similar Questions

Explore conceptually related problems

An object is placed at a distance of f//2 from a convex lens. The image will be

What is nature of image formed if a concave lens is used instead of a convex lens?

If an object is placed between F_1 and 2F_1 of a convex lens, then nature of the image formed is__.

The height of the real image in a convex lens is taken to be positive.

5 cm high object is placed at a distance of 25 cm from a converging lens of focal length 10 cm. Determine the position ,size and type or the image.

An object is placed in front of a convex mirror of focal length 60 cm. If image formed is half the size of the object, the position of the image

An object is placed at a distance of 10cm from a convex lens of focal length 12cm.Find the position and nature of the image.

An object is placed at a distance of 15 cm from a convex mirror of curvature 90 cm. The image position and magnification respectively are at

Write down any two rules used for drawing ray diagrams for the formation of image by convex lens.

An object is placed at a distance of 15 cm from a convex lens.If the focal length of the lens is 60cm,find the image distance.

TARGET PUBLICATION-RAY OPTICS-EVALUATION TEST
  1. If the object is placed at A and the image is formed at B when the ray...

    Text Solution

    |

  2. When image is fomred by reflaction, the field of veiw is maximum for

    Text Solution

    |

  3. A candle flame 2 cm high is placed at distance of 2 meter from a wall....

    Text Solution

    |

  4. An infinitely long rod lies along the axis of a concave mirror of foca...

    Text Solution

    |

  5. Assertion : If objective and eye lens of a mcroscope are interchanged ...

    Text Solution

    |

  6. The convex surface of a thin concavo-convex lens of glass of refractiv...

    Text Solution

    |

  7. Focal length of a convex/ concave mirror depends on

    Text Solution

    |

  8. A convex lens focal lenghts 30 cm made of glass of refractive index 1....

    Text Solution

    |

  9. Magnifying power of a telescope in normal adjustment when final images...

    Text Solution

    |

  10. Two plano-concave lenses (1 and 2) of glass of refractive index 1.5 ha...

    Text Solution

    |

  11. Assertion : If radius of curvature of mirror is doubled, focal length ...

    Text Solution

    |

  12. An experiment needs to heat a small sample to 700 K, but the only avai...

    Text Solution

    |

  13. Assertion : A dentist uses a convex mirror to examine a small cavity i...

    Text Solution

    |

  14. A man with normal near- point (25c m) reads a book with small print us...

    Text Solution

    |

  15. For a given compound microscope, increase in length of tube

    Text Solution

    |

  16. Which of the following (referred to a spherical mirror) do (does) not ...

    Text Solution

    |

  17. Assertion : A single lens produces a coloured image of an object illum...

    Text Solution

    |