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Find the distance from a convex mirror, ...

Find the distance from a convex mirror, of focal length 60 cm where an object of height 12 cm should be placed so that its image is produced at 35 cm from mirror.Also find the height of image
[-84 cm, 5 cm]

Answer

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The focal length of convex lens is 20 cm. If an object of height 4 cm is placed at a distance of 30 cm from the lens, find: The height of the image

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Knowledge Check

  • The above lens has a focal length of 10 cm. The object of height 2 mm is placed at a distance of 5 cm from the pole. Find the height of the image.

    A
    4 cm
    B
    `6.67` mm
    C
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    D
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  • An object is placed at 20 cm from a convex mirror of focal length 20 cm. The distance of the image from the pole of the mirror is

    A
    infinity
    B
    10 cm
    C
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    D
    40 cm

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

    A
    Real and at `20 cm` from the mirror
    B
    Virtual and at 20 cm from the mirror
    C
    Virtual and at `20//3 cm` from the mirror
    D
    Real and at `20//3` cm from the mirror

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