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BITSAT 2018 Slot 2 Solved Paper
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© examsnet.com
Question : 19
Total: 150
A convex lens shown in the figure is made up of two types of transparent materials. A point sources of light is placed on its principal axis. If reflections from the boundaries between layers are ignored, the lens will form
only one image
two images
infinite images
no image at all
Validate
Solution:
Since, the lens is made up of two kinds of transparent material, it has two refractive indices for the incident beam of light. Hence, there will be two focal lengths of the lens and therefore two images will be observed.
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