Home
Class 9
PHYSICS
The erect image formed by a concave mirr...

The erect image formed by a concave mirror is of size double the size of object. How are u and v related?

Text Solution

Verified by Experts

Magnification =`m=-(v/u)`
m=2
or , `2=-(v/u)`
`therefore` v=-2u
This is the relation between the u and v.
Promotional Banner

Topper's Solved these Questions

  • LIGHT

    ICSE|Exercise TOPIC 2 Spherical Mirrors (3 Marks Questions )|21 Videos

  • LIGHT

    ICSE|Exercise TOPIC 2 Spherical Mirrors (4 Marks Questions )|9 Videos

  • LIGHT

    ICSE|Exercise TOPIC 1 Reflections of Light (4 Marks Questions )|10 Videos

  • LAWS OF MOTION

    ICSE|Exercise EXERCISE - 3(E) (Numericals)|31 Videos

  • MAGNETISM

    ICSE|Exercise EXERCISE-10(B) (Multiple Choice Type)|2 Videos

Similar Questions

Explore conceptually related problems

The image formed by a concave mirror

The image formed by a convex mirroris of size one third the size of object. How are u and v related?

Images formed by plane mirrors are erect.

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

The image formed by a concave mirror is of the same size as the object if the object is placed ..........

The image produced by a concave mirror is one-quarter the size of object. If the object is moved 5cm closer to the mirror, the image will only be half the size of the object. The focal length of mirror is

The image formed in a convex mirror is always erect and enlarged.

The image formed by a concave mirror is observed to be virtual, erect and larger than the object. Where should be the position of the object?

A convex lens of focal length 20 cm forms a virtual image of size twice the size of the object. (i) How is the distance of image v related to the distance of object ? (ii) What is the power of lens?

(a) For what position of object, the image formed by a concave mirror is magnified and erect? (b) State whether the image in part (a) is real or virtual?

ICSE-LIGHT-TOPIC 2 Spherical Mirrors (2 Marks Questions )
  1. What is the focal length of a concave mirror of radius of curvature ...

    Text Solution

    |

  2. What is a spherical mirror?

    Text Solution

    |

  3. The radius of curvature of a convex mirror is 40 cm. Find its focal l...

    Text Solution

    |

  4. Name the two kinds of spherical mirrors and distinguish between them.

    Text Solution

    |

  5. The focal length of a concave mirror is 10 cm. Find its radius of cur...

    Text Solution

    |

  6. State the direction of incident ray which after reflection from a sphe...

    Text Solution

    |

  7. The image formed by a convex mirroris of size one third the size of ob...

    Text Solution

    |

  8. The erect image formed by a concave mirror is of size double the size...

    Text Solution

    |

  9. The magnification for a mirror is -3. How are u and v related?

    Text Solution

    |

  10. (a) For what position of object, the image formed by a concave mirror...

    Text Solution

    |

  11. State the position of object for which the image formed by a concave ...

    Text Solution

    |

  12. Write three characteristics of the image formed by a plane mirror.

    Text Solution

    |

  13. What is a real image?

    Text Solution

    |

  14. What type of spherical mirror can be used to obtain a real image of a...

    Text Solution

    |

  15. Discuss the position and nature of image formed by a convex mirror wh...

    Text Solution

    |

  16. Name the kind of spherical mirror used to obtain : A real and enlarged...

    Text Solution

    |

  17. Name the kind of spherical mirror used to obtain : A virtual and enla...

    Text Solution

    |

  18. Name the kind of spherical mirror used to obtain : A virtual and dimin...

    Text Solution

    |

  19. Name the kind of spherical mirror used to obtain : A real and diminish...

    Text Solution

    |

  20. What may be the maximum distance of the image in a convex mirror can ...

    Text Solution

    |