Imagine everything you know and recognize as a color actually being several waves reflecting off of a surface and bouncing back to your eye balls for you to perceive. Now that's what color is. When you see red, all the other light waves are being absorbed by the object except for red light. The red light waves reflect and bounce off for you to see. Each color has different wave characteristics such as: wavelength, frequency, and energy. Red has higher energy and wavelength. Since wavelength and frequency are inversely related red has a lower frequency. Violet has high frequency and low wavelength and energy. There is something called an electromagnetic spectrum that displays they colors in order of lowest to highest frequency. When ordered like so, the colors make a rainbow pattern.
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