White light is composed of what?

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Explore Alberta's Grade 8 Science curriculum on Light and Optical Systems. Test your knowledge with engaging quizzes including flashcards and multiple choice questions. Prepare effectively for your exam!

Multiple Choice

White light is composed of what?

Explanation:
White light contains a mix of many wavelengths across the visible spectrum. When all those colors blend, our eyes see white. A prism spreading white light into a rainbow shows that white isn’t a single color but a combination of colors. The idea that light is just red or just blue isn’t accurate, and light does have color components—each wavelength corresponds to a color. (In fact, mixing red, green, and blue light can produce white, illustrating how colors combine.)

White light contains a mix of many wavelengths across the visible spectrum. When all those colors blend, our eyes see white. A prism spreading white light into a rainbow shows that white isn’t a single color but a combination of colors. The idea that light is just red or just blue isn’t accurate, and light does have color components—each wavelength corresponds to a color. (In fact, mixing red, green, and blue light can produce white, illustrating how colors combine.)

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