Home
Class 12
PHYSICS
An object is placed at a distance 40 cm ...

An object is placed at a distance 40 cm in front of concave mirror. Focal length of mirror is 20 cm, so what will be type of image ?

A

Virtual and inverted

B

Real and erect

C

Real, inverted and of the same size of object

D

Real, inverted and smaller.

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D
f=20 cm
`therefore` R=40 cm
When object is placed on the centre of curvature of concave mirror image obtained is real, inverted and of the same size of an object.
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    KUMAR PRAKASHAN|Exercise SECTION-D (MULTIPLE CHOICE QUESTIONS (MCQs))(MCQs FROM .DARPAN. BASED ON TEXTBOOK)(REFRACTION)|32 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    KUMAR PRAKASHAN|Exercise SECTION-D (MULTIPLE CHOICE QUESTIONS (MCQs))(MCQs FROM .DARPAN. BASED ON TEXTBOOK)(TOTAL INTERNAL REFLECTION)|14 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    KUMAR PRAKASHAN|Exercise SECTION-C (NCERT EXEMPLAR SOLUTION) (LONG ANSWER TYPE QUESITONS)|5 Videos

  • MOVING CHARGES AND MAGNETISM

    KUMAR PRAKASHAN|Exercise SECTION D (MCQs ASKED IN COMPETITIVE EXAMS)|34 Videos

  • SAMPLE QUESTION PAPER

    KUMAR PRAKASHAN|Exercise PART-B SECTION-C|5 Videos

Similar Questions

Explore conceptually related problems

As shown in the figure, a thin rod AB of length 10 cm is placed on the principal axis of a concave mirror such that it.s end B is at a distance of 40 cm from the mirror. If the focal length of the mirror is 20 cm, find the length of the image of the rod

An object is placed at a distance of 25 cm on the axis of a concave mirror, having focal length 20 cm. Find the lateral magnification of an image.

A point object O is placed at a distance of 20 cm from a convex lens of focal length 10 cm as shown in figure. At what distance x from the lens should a concave mirror of focal length 60 cm, placed so that final image coincides with the object ?

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

A pencil 4.0 cm in size, is placed at 25.0 cm in front of a concave mirror of focal length 15.0 cm. At what distance from the mirror should a screen be placed in order to obtain a sharp image ? Find the nature and the size of the image.

A pencil, 4.0 cm in size, is placed at 25.0 cm in front of a concave mirror of focal length 15.0 cm. At what distance from the mirror should a screen be placed in order to obtain a sharp image ? Find the nature and the size of the image.

An object is placed at 30 cm in front of a concave mirror of radius of curvature 30 cm. Find the position, nature, and magnification of the image in each case.

An object is placed at (i) 10 cm, (ii) 5 cm in front of a concave mirror of radius of curvature 15 cm. Find the position, nature, and magnification of the image in each case.

KUMAR PRAKASHAN-RAY OPTICS AND OPTICAL INSTRUMENTS-SECTION-D (MULTIPLE CHOICE QUESTIONS (MCQs))(MCQs FROM .DARPAN. BASED ON TEXTBOOK)
  1. A ray is incident at an angle 38^@ with a mirror. The angle between no...

    Text Solution

    |

  2. If a ray of light is incident on a plane mirror at an angle of 30^@, t...

    Text Solution

    |

  3. An object is placed at a distance of 25 cm on the axis of a concave mi...

    Text Solution

    |

  4. For a thin convex lens when the heights of the object is double than i...

    Text Solution

    |

  5. A point object O is placed midway between on the common axis of two co...

    Text Solution

    |

  6. For ..... mirror, height of image is always ...... than height of obje...

    Text Solution

    |

  7. An object is placed at a distance 40 cm in front of concave mirror. Fo...

    Text Solution

    |

  8. A convex mirror having focal length 20 cm is used as side glass in car...

    Text Solution

    |

  9. In which of the following mirrors can a person not see a reflection la...

    Text Solution

    |

  10. Object is placed 60 cm away from convex mirror. If magnification is 0....

    Text Solution

    |

  11. Lateral magnification of an object by spherical mirror is 0.3. If foca...

    Text Solution

    |

  12. Plane mirror is moving towards you at 5 cm//s. You can see your image ...

    Text Solution

    |

  13. PQ type incident radiation and RS is the reflected ray. They are both ...

    Text Solution

    |

  14. Focal length of concave mirror is f and ratio of heights of object to ...

    Text Solution

    |

  15. If f is focal length and v is image distance for spherical mirror, the...

    Text Solution

    |

  16. If f is focal length and u is object distance for spherical mirror, th...

    Text Solution

    |

  17. If image obtained from concave mirror of focal length f is (1/n)^(th) ...

    Text Solution

    |

  18. An image of an object obtained by a convex mirror is n times smaller t...

    Text Solution

    |

  19. If real image obtained from concave mirror of focal length f is n time...

    Text Solution

    |

  20. In an experiment to find focal length of a concave mirror a graph is d...

    Text Solution

    |