Final answer:
Refraction is the process of bending or changing the direction of a ray of light when it passes from one medium to another.
Step-by-step explanation:
The process of bending or changing the direction of a ray of light is called refraction.
This phenomenon occurs when light passes from one medium to another, such as when it travels from air to water or from air to glass.
Refraction is responsible for the bending of light in a glass prism or the formation of rainbows in the sky.
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