Q.
A convex lens is made of 3layers of glass of 3 different materials as in the figure. A point object is placed on its axis. The number of images of the object are
3453
251
KCETKCET 2008Ray Optics and Optical Instruments
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Solution:
A lens made of three different materials as shown have only one focal length. Thus, for a given object there is only one image.