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Why are divergent lens called like that?

Why are divergent lens called like that?

En resumen

The converging lenses are thicker in the middle than at the edge, and concentrate ( they converge ) at a point of light rays through them. This point is called focus (F ) and the separation between it and the lens focal length is known as ( f ) .

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Princesamonic
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The

converging lenses are thicker in the middle than at the edge, and concentrate (

they converge ) at a point of light rays through them.

This point is called

focus (F ) and the separation between it and the lens focal length is known as

( f ) .

Note that the lens 2 is less than one focal length.