Question

write short information for bi_ concave lens & bi _ convex lens​

Answer 1

Answer:

convex and concave lens

Explanation:

convex lens = It is used to correct long sightedness Or Hypermetropia.

concave lens= It is used to correct short sightedness Or Myopia.

Answer 2

Answer:

✍A lens is biconvex (or double convex, or just convex) if both surfaces are convex. If both surfaces have the same radius of curvature, the lens is equiconvex.

✍A lens with two concave surfaces is biconcave (or just concave). ... A lens with one convex and one concave side is convex-concave or meniscus.

Hope it helps you dear.....

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