All Textbook Topics - Light - Properties of virtual light rays - Virtual light rays must be dashed and NOT have an arrow on them

Virtual light rays must be dashed and NOT have an arrow on them

Virtual light rays do not have arrows as they are not real. They must be dashed as well to further represent the idea that they do not really exist.

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Virtual light rays are where the human eye follows a real light ray back, but the light ray has reflected at some point. The human brain can't detect that it has reflected so it thinks the light ray keeps going at the point it reflects. The virtual light ray is not really there, the brain only thinks it it there.
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Virtual rays must be behind the mirror/reflector as seen by the eye

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