How does optical density affect light rays as they enter/leave a medium?
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Explanation:
Change of speed causes change of direction
Light refracts whenever it travels at an angle into a substance with a different refractive index (optical density). ... When light enters a more dense substance (higher refractive index), it 'bends' more towards the normal line.
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Answer:
The density of a material affects the speed that a wave will be transmitted through it. In general, the denser the transparent material, the more slowly light travels through it. Glass is denser than air, so a light ray passing from air into glass slows down.
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