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What kind of lens is used as a magnifyin...

What kind of lens is used as a magnifying glass ?

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A concave lens is used as a magnifying glass.

When a convex lens is used as magnifying glass (simple microscope) a real, inverted and enlarged image is produced,

Knowledge Check

  • When a convex lens of 2.5 cm focal length is used as a magnifying glass, norma eye can see an object clearly at a distance of 25 cm. The magnifying power of the instrument is

    A
    110
    B
    100
    C
    11
    D
    10

  • The focal length of convex lens used as a magnifying glass is:

    A
    more
    B
    much more
    C
    less
    D
    All of these

  • Assertion: A convex lens is used as simple magnifying glass. Reason: When the object is kept very close to convex lens, we get magnified and erect image.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.

    • Similar Questions

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    [" The focal length of a convex lens is "10" cm.Find its "],[" magnifying power when it is used as a magnifying glass to "],[" form the image at (i) near point and (ii) far point "]

    The focal length of a convex lens is 10 cm.Find its magnifying power when it is used as a magnifying glass to form the image at (i) near point and (ii) far point

    The focal length of a convex lens is "10cm.Find its magnifying power when it is used as a magnifying glass to form the image at (i) near point and (ii) far point

    A magnifying glass is a converging lens placed close to the eye. A farsighted person uses spectacles having converging lenses. Compare the functions of a converging lens used as a magnifying glass and as spectacles.

    What kind of lens is used by a myopic person ?

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