Refractive Index
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Refractive Index

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The speed of light is normally rounded to 300 000 kilometers per second or 186 000 miles per second.

The speed of light depends on the material that the light moves through - for example: light moves slower in water, glass and through the atmosphere than in a vacuum. The ratio whereby light is slowed down is called the refractive index of that medium.

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1 decade ago
Comment by: PK
hehe, this picture should be in a science book


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CategorySci-Fi
Uptime1 decade
Submited:30.09.2002
Resolution:0x0

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