Final answer:
When light passes from a material with a lower speed to a material with a higher speed, it is bent away from the normal to the surface in a process called refraction.
Step-by-step explanation:
When light passes at an angle to the normal from one material into another material in which its speed is higher, it is bent away from the normal to the surface. This phenomenon is known as refraction. The extent of bending depends on the refractive indices of the two materials involved. The refractive index is a measure of how much light slows down when it enters a medium compared to its speed in a vacuum. If the speed of light is higher in the second material, it will bend away from the normal to the surface.
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