to the le of the lens, which is further than one focal length f to the le of the lens,
will form a virtual image on the same side of the lens at S
2
, which is closer than the focal length. It is also
possible to have a lens with one convex surface and one concave surface. is form of a lens is called a
meniscus lens. It is also possible to have a lens with one side planar and the other side either convex or
concave. ese are called plano-convex and plano-concave lenses, respectively.
2.6 Magnication
Again from Figure 2.6, we can determine the ratio of heights of the object and the ima ...
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