• When a light beam travels from one medium to another, then it's velocity decreases or increases depending upon the optical density of the other medium.
The speed of light changes in different mediums because of the particles within the medium. Typically, light will travel in a vacuum, or a region where there is no matter or air present, at a rate of 2.99792458 meters per second, or 3.00 meters per second.
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Answer:
•It's because of a phenomena called refraction.
• When a light beam travels from one medium to another, then it's velocity decreases or increases depending upon the optical density of the other medium.
Verified answer
Answer:
The speed of light changes in different mediums because of the particles within the medium. Typically, light will travel in a vacuum, or a region where there is no matter or air present, at a rate of 2.99792458 meters per second, or 3.00 meters per second.
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