Home
Class 12
PHYSICS
A point object is kept between a plane m...

A point object is kept between a plane mirror and a concave mirror facing each other. The distance between the mirrors is 22.5 cm . The distance between the mirrors is 20 cm. what should be the distance of the object from the concave mirror so that after two successive reflections the final image is formed on the object itself ? (consider first reflection from concave mirror).

A

`5cm`

B

`15cm`

C

`10cm`

D

`7.5cm`

Text Solution

Verified by Experts

The correct Answer is:
B

NA
Promotional Banner

Topper's Solved these Questions

  • GEOMATRICAL OPTICS

    RESONANCE|Exercise Exercise-2|63 Videos
  • GEOMATRICAL OPTICS

    RESONANCE|Exercise Exercise-3|79 Videos
  • GEOMATRICAL OPTICS

    RESONANCE|Exercise Problem|33 Videos
  • EXPERIMENTAL PHYSICS

    RESONANCE|Exercise PART -II|10 Videos
  • GRAVITATION

    RESONANCE|Exercise HIGH LEVEL PROBLEMS|16 Videos

Similar Questions

Explore conceptually related problems

An object is placed between a wall and a concave mirror of focal length 15 cm. The distance between wall and mirror is 40 cm. Find the position of the object placed such that the image of the object is just formed on the wall.

The image formed by a concave mirror is twice the size of the object. The focal length of the mirror is 20 cm. The distance of the object from the mirror is//are

An object is placed midway between a concave mirror of focal length f and a convex mirror of focal length f. The distance between the two mirrors is 6f. Trace the ray that is first incident on the concave mirror and then the convex mirror.

A concave mirror of focal length 10cm is placed in front of a convex mirror of focal length 20 cm. The distance between the two mirrors is 20cm. A point object is placed 5cm from the concave mirror. Discuss the formation of image.

We wish to obtain an erect image of an object by using a concave mirror of focal length 10 cm. What should be the distance of the object from the concave mirror ? Is the image real or virtual ? Is the image larger or smaller than the object ?

Where is the image formed when an object is at large distance from a concave mirror?

Two plane mirrors are placed parallel to each other. The distance between the mirrors is 10cm. An object is placed between the mirrors at a distance of 4cm from one of them, say M_(1) . What is the distance between the first time formed at M_(1) and the second image formed at M_(2) ?

An object is placed between a plane mirror and a concave mirror of focal length 15 cm as shown in Figure . Find the position of the images after two reflections.

The image (of a real object) formed by a concave mirror is twice the size of the object. The focal length of the mirror is 20cm. The distance of the object from the mirror is:

RESONANCE-GEOMATRICAL OPTICS -Exercise-1
  1. Two plane mirrors A and B are parallel to each other and spaced 20 cm ...

    Text Solution

    |

  2. An object of height 1cm is kept perpendicular to the principle axi...

    Text Solution

    |

  3. A point object is kept between a plane mirror and a concave mirror fac...

    Text Solution

    |

  4. A square ABCD of side 1mm is kept at distance 15cm in front of the con...

    Text Solution

    |

  5. In Figure, find the total magnification after two successive reflectio...

    Text Solution

    |

  6. A luminous point object is moving along the principal axis of a concav...

    Text Solution

    |

  7. A real object is moving toward a fixed spherical mirror. The image

    Text Solution

    |

  8. A point object on the principal axis at a distance 15cm in front of a ...

    Text Solution

    |

  9. In the figure shown If the objectO moves towards the palne mirror ,the...

    Text Solution

    |

  10. A point object at 15 cm from a concave mirror of radius of curvature 2...

    Text Solution

    |

  11. The distance of an object from the fouce of a convex mirror of radius ...

    Text Solution

    |

  12. An object is placed at 20 cm from a convex mirror of focal length 20 c...

    Text Solution

    |

  13. Which of the following can from erect, virtual, diminished image?

    Text Solution

    |

  14. I is the image of a point object O formed by spherical mirror, then wh...

    Text Solution

    |

  15. An object is placed at a distance u from a concave mirror and its real...

    Text Solution

    |

  16. A real inverted image in a concave mirror is represented by (u,v, f ar...

    Text Solution

    |

  17. The wavelength of light in vacuum is 6000 A^(@) and in a medium it is...

    Text Solution

    |

  18. A ray of light passes from vaccum into a medium of refractive index n....

    Text Solution

    |

  19. A ray of light is incident on a parallel slab of thickness t and refra...

    Text Solution

    |

  20. A ray of light travelling in air is incident at grazing incidence on a...

    Text Solution

    |