How do different colors affect opaque and transparent objects?

Color and opacity/transparency are usually two separate properties of objects, but they do interact. For example, you can have a white opaque object, but not a white transparent object since white happens when most the light is scattered. If a window were white, you couldn't see through it and it would therefore not be transparent.

It might be translucent, however, meaning that some light goes through, but is scattered (you see the light coming through, but you can't see objects clearly on the other side). Q: What colors travel faster than others in the spectrum? A: In a vacuum, all colors of light travel at the same speed.

The same is essentially true for air. However, in some materials the speed of light depends on wavelength and that is what causes dispersion (the separation of colors by a prism). Q: Why do colors have numbers, and what does each color repersent?

A: Colors have numbers to facilitate communication. Our assignments of numbers help people communicate more precisely ( ... more.

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