Home
Class 12
PHYSICS
An object is placed at a distance 2f fro...

An object is placed at a distance `2f` from a concave mirror of focal length `f`. Light reflected from the mirror falls on a plane mirror. The distance of the plane mirror from the concave mirror equals `f`. The distance of the final image (due to reflection at both concave and plane mirror) from the concave mirror is

A

`f`

B

`f//2`

C

`2f`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
D

`I_(1)` would act as an object for the plane mirrorr. Clearly, the imager is formed at a distance `f` in front of the mirrorr.
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    A2Z|Exercise Refraction At Curved Surface|64 Videos
  • GEOMETRICAL OPTICS

    A2Z|Exercise Prism Theory And Dispersion Of Light|45 Videos
  • ELECTROMAGNETIC WAVES AND COMMUNICATION SYSTEM

    A2Z|Exercise Section D - Chapter End Test|30 Videos
  • MAGNETISM AND MATTER

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

An object is placed at a distance of 20 cm from the pole of a concave mirror of focal length 10 cm. The distance of the image formed is

An object is placed 42 cm, in front of a concave mirror of focal length 21 cm. Light from the concave mirror is reflected onto a small plane mirror 21 cm in front of the concave mirror Where is the final image?

A real object is placed at a distance f from the pole of a convex mirror, infront of the convex mirror. If focal length of the mirror is f, then distance of the image from the pole of the mirror is

An object is placed at a large distance in front of a concave mirror of radius of curvature 40 cm. The image will be formed in front of the mirror at a distance of :

An object is placed at a distance of 30 cm from a concave mirror and its real image is formed at a distance of 30 cm from the mirror. The focal length of the mirror is

A concave mirror of focal length f produces a real image n times the size of the object. The distance of the object from the mirror is

A2Z-GEOMETRICAL OPTICS-Section D - Chapter End Test
  1. An object is placed at a distance 2f from a concave mirror of focal le...

    Text Solution

    |

  2. Wavelength of light used in an optical instrument are lambda(1)=400 Å ...

    Text Solution

    |

  3. A plano convex lens of refractive index 1.5 and radius of curvature 30...

    Text Solution

    |

  4. A light ray is incident perpendicularly to one face of a 90^circ prism...

    Text Solution

    |

  5. A thin glass (refractive index 1.5) lens has optical power of -5D in a...

    Text Solution

    |

  6. Which of the following graphs is the magnification of a real image aga...

    Text Solution

    |

  7. A thin prism P(1) with angle 4degree and made from glass of refractive...

    Text Solution

    |

  8. A converging lens is used to form an image on a screen. When the upper...

    Text Solution

    |

  9. A diminished image of an object is to be obtained on a screen 1.0 m fr...

    Text Solution

    |

  10. An object 15cm high is placed 10cm from the optical center of a thin l...

    Text Solution

    |

  11. A lens forms a virtual, diminished image of an object placed at 2 m fr...

    Text Solution

    |

  12. When the distance between the object and the screen is more than 4 f....

    Text Solution

    |

  13. a convex lens of power +6 diopter is placed in contact with a concave ...

    Text Solution

    |

  14. A concave lens of focal length 20 cm product an image half in size of ...

    Text Solution

    |

  15. A convex lens of focal length 1.0m and a concave lens of focal length ...

    Text Solution

    |

  16. If in a planoconvex lens, the radius of curvature of the convex surfac...

    Text Solution

    |

  17. A convex lens A of focal length 20cm and a concave lens G of focal le...

    Text Solution

    |

  18. The radii of curvature of the two surfaces of a lens are 20cm and 30 c...

    Text Solution

    |

  19. A lens forms a virtual image 4 cm away from it when an object is place...

    Text Solution

    |

  20. A concave lens of focal length (1)/(3)m forms a real, inverted image t...

    Text Solution

    |

  21. An object is placed at a distance of f//2 from a convex lens. The imag...

    Text Solution

    |