Light has wavelengths and each color of light has a different wavelength. When the light enters the GLASS, which is denser than air, it slows down and is bent, with the different wavelengths that make up white light bending at different angles (red on one side to violet on the other).
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Answer:
Light has wavelengths and each color of light has a different wavelength. When the light enters the GLASS, which is denser than air, it slows down and is bent, with the different wavelengths that make up white light bending at different angles (red on one side to violet on the other).