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Find the position of an object which whe...

Find the position of an object which when placed in front of a concave mirror of focal length 20 cm produces a virtual image twice the size of the object.

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u = -10 cm
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Find the position of an object, which when placed in front of a concave mirror of radius of curvature 40 cm produces a virtual image, which is twice the size of the object.

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Knowledge Check

  • If an object is placed 10 cm infront of a concave mirror of focal length 20cm, the image will be

    A
    Diminished, upright, virtual
    B
    Enlarged, upright, virtual
    C
    Diminished, inverted, real
    D
    Enlarged, upright, real

  • An object placed in front of a concave mirror of focal length 0.15 m produces a virtual image, which is twice the size of the object. The position of the object with respect to the mirror is

    A
    `-5.5cm`
    B
    `-6.5cm`
    C
    `-7.5cm`
    D
    `-8.5cm`

  • An object is placed 40 cm from a concave mirror of focal length 20 cm. The image formed is

    A
    Real, inverted and same in size
    B
    Real, inverted and smaller
    C
    Virtual, erect and larger
    D
    Virtual, erect and smaller

    • Similar Questions

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    An object is placed at a distance of 40 cm in front of a concave mirror of focal length 20 cm. The image produced is

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    An object is placed 25 cm in front of a concave lens of focal length 25 cm. The position of images is

    An object is placed at a distance of 40 cm in front of a concave mirror of focal length 20 cm the image produced is

    An object is placed at 15 cm in front of a concave mirror whose focal length is 10 cm. The image formed will be

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