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Lens Maker's Formula

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Question

The lens shown in figure is made of two different materials. A point object is placed on the principal axis of this lens. How many images will be obtained?

A

One

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B

Two

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C

Four

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D

Zero

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Solution

The correct option is B Two
Since the lens is made of two different materials, the lens has two different refractive indices. Therefore, the lens would have two different focal lengths. Thus, two images will be obtained.

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