Home
Class 11
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

Promotional Banner

Topper's Solved these Questions

  • PHYSICAL WORLD, UNITS & MEASUREMENT

    DISHA|Exercise physics|45 Videos

  • SEMICONDUCTOR

    DISHA|Exercise PHYSICS|45 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-RAY OPTICS AND OPTICAL INSTRUMNTS-PHYSICS
  1. Which of the following is not due to total internal reflection ?

    Text Solution

    |

  2. A body is located on a wall. Its image of equal size is to be obtained...

    Text Solution

    |

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

    Text Solution

    |

  4. A ray of light passes through an equilateral prism (refractive index 1...

    Text Solution

    |

  5. The power of a biconvex lens is 10 dioptre and the radius of curvature...

    Text Solution

    |

  6. A microscope is focused on a mark on a piece of paper and then a slab ...

    Text Solution

    |

  7. What causes chromatic aberration?

    Text Solution

    |

  8. The graph between angle of deviation (delta) and angle of incidence (i...

    Text Solution

    |

  9. The ratio of thickness of plates of two transparent medium A and B is ...

    Text Solution

    |

  10. A rectangular block of glass is placed on a mark made on the surface o...

    Text Solution

    |

  11. If a glass prism is dipped in water, its dispersive power

    Text Solution

    |

  12. In the given figure a plano-concave lens is placed on a paper on which...

    Text Solution

    |

  13. To get three images of a single object, one should have two plane mirr...

    Text Solution

    |

  14. Light propagates with speed of 2.2 xx 10^( 8) m//s and m/s 2.4 xx10 ^(...

    Text Solution

    |

  15. A thin convergent glass lens (mug=1.5) has a power of +5.0D. When this...

    Text Solution

    |

  16. A ray of light travelling inside a rectangular glass block of refracti...

    Text Solution

    |

  17. A small coin is resting on the bottom of a beaker filled with a liquid...

    Text Solution

    |

  18. A ray PQ incident on the refracting face BA is refracted in the prism ...

    Text Solution

    |

  19. When a biconvex lens of glass having refractive index 1.47 is dipped i...

    Text Solution

    |

  20. Show that the angle of deviation produced by a thin prism is reduced t...

    Text Solution

    |