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A TV emits photons of different colors in the visible electromagnetic spectrum.

A human can "see" 4 different colors: red, green, blue and violet. The eyes violet photo-receptors are very weak and can be ignored.

A TV therefore emits 3 different colors: red, green and blue.

If these colors are mixed, the color will appear white.

To achieve a color of yellow, the colors red and green are mixed.

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14y ago

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