Question

what is a Plano concave lens

Answer 1

Plano-Concave Lenses. These lenses are thicker at the edge than in the centre and flat on one side. The plano-concave lensesare used to expand light beams or to increase focal lengths in optical systems.
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Answer 2

Heyy mate. . . here is ur answer. . .
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These lenses are thicker at the edges than in the centre and flat on one side.The plano concave lenses are used to expand light beam or to increase focal length in optical system ...
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