Question

define spherical lens and its types in detail​

Answer 1

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A piece of a transparent medium bounded by at least one spherical surface, is called a spherical lens. An optical lens is made of transparent material such as glass or clear plastic. ... A diverging lens is called a concave lens. It is thinner at the centre than at the edges

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Answer 2

Explanation:

Spherical lens are part of hallow sphere. They are of two types, concave and convex. Concave have inner reflecting side and convex outer. Concave images are real inverted and magnified. Convex are diminished and virtual