What is the result of mixing red and green light?

Study for the Key Stage 3 (KS3) Waves Test. Strengthen concepts with flashcards and multiple choice questions. Prepare effectively for your exam!

When red and green light are mixed, they produce yellow light. This phenomenon occurs because light mixing follows the principles of additive color mixing, which is different from mixing pigments or paints. In additive color mixing, colors are created by combining different wavelengths of light.

Red light has a longer wavelength, while green light has a medium wavelength. When these two colors of light are combined, their wavelengths add together to produce the perception of yellow. This can be demonstrated using a color wheel or in practice with colored lights. Yellow is located between red and green on the spectrum of additive colors.

In contrast, other colors listed, such as blue, cyan, and magenta, result from different combinations of light. For example, blue light mixed with green would produce cyan, and red light mixed with blue would create magenta. These combinations illustrate how different light sources can create entirely different colors based on their wavelengths and the principles of color mixing.

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