What is a lens? Write its main types. – InterviewSolution

1.	What is a lens? Write its main types.
Answer» tion:A lens can focus LIGHT to FORM an IMAGE, unlike a prism, which refracts light without focusing. There are two types of lensesconvex and concave. Convex LENSES are lenses that curve outwards, they converge parallel light rays to a focal point. Concave lenses are thinner in the middle and thicker at their edges.

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