Question #5a04f

1 Answer
Nov 25, 2016

google image

In the above figure the formation of images by a convex lens is shown in a sequence where the object is approaching towards lens from infinity. We see here six possible cases /positions explaining the formation of images by a convex lens entirely.

In case (vi) /(6th) position virtual magnified image is formed . This says that if an object is placed within focal length of a lens then we see the erect and magnified image on the same side as the object. And this phenomenon is used in everyday life when we want to see any object in magnified state. That is why the convex lens is called magnifying lens
google image

In case (iv) we also get magnified image. But in this case image is real and inverted . This is formed on a screen kept at proper position in the opposite side of the object . So we cannot see this image when viewed through the lens , which is possible in case (vi).
So magnifying capacity in this case cannot easily be used to see the magnified image as in case (vi)