Home
Class 12
PHYSICS
A 4.5 cm needle is placed 12 cm away fro...

A `4.5 cm` needle is placed 12 cm away from a convex mirror of focal length 15 cm. Give the location of the image and the magnification. Describe what happens as the needle is moved farther from the mirror.

Text Solution

Verified by Experts

`6.7` cm at back of the mirror 0.55
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS

    MOTION|Exercise Exercise-1|102 Videos

  • RAY OPTICS

    MOTION|Exercise Exercise-2|39 Videos

  • RAY OPTICS

    MOTION|Exercise Exercise-4|38 Videos

  • RADIOACTIVITY & NUCLEAR PHYSICS

    MOTION|Exercise Exercise-3|81 Videos

  • ROTATIONAL MOTION

    MOTION|Exercise Exercise - 3 ( Section-B )|24 Videos

Similar Questions

Explore conceptually related problems

A 2.5 cm candle is placed 12 cm away from a convex mirror of focal length 30 cm. Give the location of the image and the magnification.

A 4.5 cm needle is placed 12 cm away from a convex mirror of focal length 15 cm. The position of image and the magnification respectively are

Object is placed 15 cm from a concave mirror of focal length 10 cm, then the nature of the image formed will be

A 0.2 cm high object is placed 15 cm from a concave mirror of focal length 5 cm. Find position and size of the image.

If an object is 30 cm away from a concave mirror of focal length 15 cm the image will be

An object is placed 15 cm from a convex mirror of radius of curvature 90 cm. Calculate position of the image and its magnification.

A 5 cm long needle is placed 10 cm from a convex mirror of focul length 40 cm . Find the position, nature and size of image of the needle. What happens to the size of image when needle is moved farhter away from the mirror ?

An object is placed at 20 cm from a convex mirror of focal length 10 cm. The image formed by the mirror is

MOTION-RAY OPTICS-Questions For Practice
  1. Two mirror inclined to each other produce five images of an ob...

    Text Solution

    |

  2. When a plane mirror is placed horizontally on level ground at a distan...

    Text Solution

    |

  3. A 4.5 cm needle is placed 12 cm away from a convex mirror of focal len...

    Text Solution

    |

  4. A small candle 2.5 cm in size is placed 27 cm in front of a concave mi...

    Text Solution

    |

  5. A beam of light converges towards a point O ,behind a convex mirror of...

    Text Solution

    |

  6. A needle placed 45 cm from a lens forms an image on the screen placed ...

    Text Solution

    |

  7. A candle is placed 20cm from the surface of a convex mirror and a plan...

    Text Solution

    |

  8. Width of a slab is 6 cm whose mu = (3)/(2) . If its one surface...

    Text Solution

    |

  9. An object is placed 21 cm in front of a concave mirror of radius of cu...

    Text Solution

    |

  10. In the figure shown , for an angle of incidence 45^(@), at the top sur...

    Text Solution

    |

  11. If light travels a distance x in t(1) sec in air and 10x distance in t...

    Text Solution

    |

  12. A fish looking from within water sees the outside world through a circ...

    Text Solution

    |

  13. A thin prism of 6^@ angle gives a deviation of 3^@. The refractive in...

    Text Solution

    |

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

    Text Solution

    |

  15. Find the angular dispersion produced by a thin prism of 5^(@) ...

    Text Solution

    |

  16. The refractive indicates of flint glass for red and violent colours ar...

    Text Solution

    |

  17. In a certain spectrum produced by a glass prism of dispersive power 0....

    Text Solution

    |

  18. White light is passed through a prism of angle 10^(@) If the rafra...

    Text Solution

    |

  19. A lens placed at a distance of 20cmfrom a object produces of virtual I...

    Text Solution

    |

  20. A converging beam of light forms a sharp image on a screen. A lens is ...

    Text Solution

    |