What color is produced when all the colors of light are mixed together?

• A. Red
• B. Blue
• C. White
• D. Black

Answer: (C)

When all the colors of light are mixed together, the result is white light. This phenomenon occurs because light is additive, meaning that when different wavelengths (colors) of light are combined, they add up to create a broader spectrum. The primary colors of light—red, green, and blue—can each combine in various ways to form other colors, and when they are all combined equally, they produce white light.

In contrast, other colors mentioned serve different roles. For example, red and blue are specific wavelengths and do not represent the combination of all light. Black, on the other hand, represents the absence of light, not a mixture of all colors. Therefore, the interaction of all colors of light leading to white light beautifully illustrates the additive properties of light.