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Effect of air on the speed of light

download this video 5752 views | 2m 31s
The video shows a simple experiment that demonstrates that light is slowed down in the presence of air. The refractive index of air is 1.00025. This causes speed of light to reduced by 1/4000, whil... (more)
Channels: Physics (General)
Tags: Effect of air on the speed of light Speed of light
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