visible light travels in a straight line until something gets in the way.refraction occurs when light slows…

visible light travels in a straight line until something gets in the way.refraction occurs when light slows down as it travels through different mediums. mediums are things like water, diamonds, glass, and air. when light slows down it appears distorted.the index of refraction is a scale that gives us a value of how much light will slow down. light travels fastest through a vacuum and slows down as it goes through different mediums. as the number value on the index of refraction increases, the speed of light decreases.what is happening when light travels through a medium and becomes bent or distorted?refractionevaporationreflection

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