A Simple Polarization Example

Ordinary visible light is a mixture of many kinds of waves. The light that enters your eye is composed of waves of a multitude of different wavelengths.



Each of these different waves vibrates in many different directions as the light travels.



" Whenever We Change a Beam Of Light Waves So That Many Of The Waves Are Vibrating In The Same Direction, We Have 'Polarized' The Light Beam."



Let's use Polarizing sunglasses for example:

We perceive light waves that vibrate horizontally as 'glare', on polarizing sunglasses, there are many tiny vertical scratches that allow only light wave that vibrate vertically through those tiny scratches. Light vibrating in other directions has a hard time getting through. In particular, horizontally vibrating waves will be stopped completely. Since they are the cause of glare, polarizing sunglasses will stop the glare waves. The light that went through the other side of the glasses is polarized. (light waves vibrating the same direction)



The actual description of light waves and how they vibrate is a great deal more complicated than has been made out here. Electromagnetic wave properties can be described mathematically, and seem to share the qualities of both a particle and a wave, as you may have learned or will be learning in your Physics class.

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