Above picture is a bi-focal lens, used to correct a presbyopic person, what is region 1 and 2?

Convex and Concave

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Concave and Convex

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Both are concave

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Both are convex

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Solution

The correct option is B
Concave and Convex

Region 1 is concave lens and region 2 is convex lens.

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Similar questions

In the given figure, there is a bi-focal lens, used to correct a presbyopic person, what is region 1 and 2?

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