Question

diffrent types of lenses

Answer 1

Basically there are two types of lenses :-

1. Concave lens

2. Convex lens


But these are also divided in different categories , for concave :-

1. Plano-concave lens

2. Bi conacave lens

3. Equi-concave lens

4. concavo- convex lens

same names for types of convex lenses

Answer 2

the 2 types of lenses are
                  
                 convex
                     
                  concave 

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