How are converging lenses different from diverging lenses?

  • Converging lenses are lenses which converge the light rays coming towards them, whereas diverging lenses are lenses which diverge the rays coming towards them. A converging lens have positive focal length.
  • A converging lens causes exiting rays to be more convergent coming out than they were entering the lens. A diverging lens have negative focal length. A diverging lens causes exiting rays to be more divergent coming out than they were entering the lens.
  • A converging lens can form a real image or a virtual image of a real object. A diverging lens always forms virtual images of real objects.

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