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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.
The Shorter The Wavelength The More Energy The Light Has The Speed Of Light Does Not Depend On Its Energy Going Through Translucent Objects Can Slow Light Down By A Very Small Amount.
For Example A Lamp Gives Off Light Everything Else In The Room The Lamp Is In Reflects The Lamps Light As The Viewer One Cannot Directly Determine Where The Ray Of Light.
Light And Color Are Forms Of Analog Information However Electronic Cameras And Computer Displays Work With Digital Information Electronic Cameras Or Document Scanners Make A Digital.
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.
Radio Waves Are A Form Of Electromagnetic Radiation With A Wavelength Longer Than Infrared Light The Microwaves That Are Used To Heat Food In A Microwave Oven Are Also A Form Of Electromagnetic Radiation.
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.
He Main Properties Of Light Are Intensity Polarization Phase And Orbital Angular Momentum In Physics The Term Light Sometimes Means Electromagnetic Radiation Of Any Wavelength.
Light Is A Form Of Electromagnetic Radiation It Is The Natural Agent That Stimulates Sight And Makes Things Easy To See Light Is The Opposite Of Darkness.
Light Makes Up A Part Of Both The Electromagnetic Spectrum And Radiation Given Off By Stars Like The Sun The Light That Comes From The Sun Reaches The Earth And Makes It Bright.
The Spectrum Contains All Of The Wavelengths Of Light That We Can See Red Light Has The Longest Wavelength And Violet Purple Light Has The Shortest Light With A Wavelength.
Whether It Can Be Seen Or Not In A Vacuum The Speed Of Light Is 299 792 458 Meters Per Second Or About 186 282 Miles Per Second This Means It Takes About 7 Minutes For Light To Reach Earth From The Sun.