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Light Moves In A Straight Line The Straight Line Path Is Often Drawn As A Ray That Moves In One Direction Ray Diagrams Are Used To Illustrate Light Traveling From One Place.
Other Colors Can Be Seen Only With Special Cameras Or Instruments: Wavelengths Up The Frequency Of Red Are Called Infrared And Higher Than Of Violet Are Called Ultraviolet.
A Beam Of Light Can Be Thought Of As A Set Of Light Rays Objects That Block Rays Of Light Can Create Shadows Opaque Objects Block All Light Rays And Create A Darker Shadow.