Converging Lens or Convex Lens


 
 
Concept Explanation
 

Converging Lens or Convex Lens

It is the lens which is thicker in the middle than at the edges. A beam of parallel rays of light falls on a convex lens from the left side. After passing through the convex lens, the beam of parallel rays of light converges at a point . Hence, a convex lens is a converging lens.

Image formed by convex lens :

The nature of the image  formed by a convex lens varies as the  distance of the object from the  lens changes. When an object is placed at a far off distance from the convex lens, then the image formed by the convex lens is real, inverted and much smaller than the object.

When we place the object closer to the lens then the image formed will be erect and magnified.

Uses of convex lens :

  • Convex lens are used as magnifying glass.
  •  In the manufacturing of spectacles, camera,telescope and binoculars, convex lenses are used.
  • Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    A microscope is used for seeing _______________

    Right Option : A
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    Question : 2

    The nature of the image  formed by a _______________________  lens varies as the  distance of the object from the  lens changes.

    Right Option : A
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    Explanation
    Question : 3

    A convex lens will make an image appear  _________ if the object is placed between the focal point and the lens.

    Right Option : C
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    Explanation
     
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