A convex lens is made of 3 layers 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
Text Solution
Verified by ExpertsThe correct answer is:
C
For the first lens .
and
are positive, Therefore the first lens and similarly the last lens are ineffective. The middle one alone is the lens that gives the image. Therefore one image will be got.
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