Final answer:
Light behavior changes between different media.
Explanation:
When light travels from air into water, the wavelength decreases, and the speed decreases, which causes the light to bend towards the normal.
As light moves from air into glass, the ray bends away from the normal, and the speed decreases.
As light transitions from a vacuum into diamond, the wavelength first decreases and then increases.
Learn more about Behavior of light in different media here:
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