Home
Class 12
PHYSICS
A concave mirror forms the image of an o...

A concave mirror forms the image of an object on a screen. If the lower half of the mirror is covered with an opaque card, the effect would be

A

image less bright.

B

lower half of the image disappear

C

upper half of the image disappear

D

image blurred.

Text Solution

Verified by Experts

The correct Answer is:
A
Due to covering the reflection from lower part is not there so it makes the image less bright.
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    DISHA PUBLICATION|Exercise Exercise - 1 : Concept Builder (Topicwise)(Topic 2 : Refraction of Light at Plane Surface and Total Internal Reflection)|17 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    DISHA PUBLICATION|Exercise Exercise - 1 : Concept Builder (Topicwise)(Topic 3 : Refraction of light at Spherical Surface and Power of Lens)|15 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    DISHA PUBLICATION|Exercise Exercise -2 : Concept Applicator|26 Videos

  • PHYSICAL WORLD, UNITS AND MEASUREMENTS

    DISHA PUBLICATION|Exercise Exercise - 2 : Concept Applicator|30 Videos

  • SEMICONDUCTOR ELECTRONICS : METERIALS, DEVICES AND SIMPLE CIRCUITS

    DISHA PUBLICATION|Exercise EXERCISE -2: CONCEPT APPLICATOR|25 Videos

Similar Questions

Explore conceptually related problems

A converging lens is used to form an image on a screen. When the upper half of the lens is covered by an opaque screen

A convex lens is used to form an image of an object on a screen. If the upper half of the lens is blackened so that it becomes opaque, then

A converging lens is udes to form an image on a screen. When the upper half of the lens is covered by an opaque screen,

Image of an object in a concave mirror is.

Can a concave mirror form a virtual image of same size as the object?

A concave mirror forms an image of 20 cm high object on a screen placed 5.0 m away from the mirror. The height of the image is 50 cm. Find the focal length of the mirror and the distance between the mirror and the object.

DISHA PUBLICATION-RAY OPTICS AND OPTICAL INSTRUMENTS-Exercise - 1 : Concept Builder (Topicwise)(Topic 1 : Plane Mirror, Spherical Mirror and Reflection of Light)
  1. The light reflected by a plane mirrorr may form a real image

    Text Solution

    |

  2. Two plane mirrors are inclined at 70^@. A ray incident on one mirror a...

    Text Solution

    |

  3. A point source of light is placed in front of a plane mirror.

    Text Solution

    |

  4. In image formatiion from spherical mirrors, only paraxial rays are con...

    Text Solution

    |

  5. Two mirrors are placed at right angle to each other. A man is standing...

    Text Solution

    |

  6. A concave mirror forms the image of an object on a screen. If the lowe...

    Text Solution

    |

  7. A man 160 cm height stands in fromt of a plane mirror . His eye...

    Text Solution

    |

  8. Two plane mirrors are inclined to each other such that a ray of light ...

    Text Solution

    |

  9. When a plane mirror is placed horizontally on level ground at a distan...

    Text Solution

    |

  10. In a concave mirror, an object is placed at a distance d1 from the foc...

    Text Solution

    |

  11. A ray of light is incident at 50^(@) on the middle of one of the two m...

    Text Solution

    |

  12. Two plane mirrors are inclined to each other at a certain angle.A ray ...

    Text Solution

    |

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

    Text Solution

    |

  14. A ray parallel to principal axis is incident at 30^(@) from normal on...

    Text Solution

    |

  15. A car is fitted with a convex side-view mirror of focal length 20 cm. ...

    Text Solution

    |

  16. Two mirrors, one concave and the other convex, are placed 60 cm apart ...

    Text Solution

    |

  17. In Fig. find the total magnification after two successive reflections ...

    Text Solution

    |

  18. A plane mirror is kept parallel to y-axis. A point object is approachi...

    Text Solution

    |

  19. A point object is kept in front of a plane mirror. The plane mirror is...

    Text Solution

    |