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image
A representation of an object formed by rays of light or other electromagnetic radiation in an optical instrument such as telescope, microscope, or camera. Although a virtual image has no physical existence – light only seems to come from its apparent position – light actually comes to a focus in a real image and these can be made visible by a suitable screen.
Related category
• OPTICS AND OPTICAL PHENOMENA
Also on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History
Transport Concepts & Designs (partner site)