Answer:
see below
Explanation:
The color you see is the result of that color being reflected (not absorbed) by the object.
The "reflected" answers here are straightforward. You also need to know that the mix of all colors is white.
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For the "absorbed" answers, you need to look through the list of all colors and see which is NOT absorbed. That color is reflected, so is the color of the object.
When all light is absorbed, the apparent color is "black."
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These ideas are also used in other applications.
A "black hole," for example, is a stellar object that conceptually absorbs everything — all forms of energy and matter. (However, it has been recently discovered that black holes actually emit a certain kind of radiation.)
Conceptually, "white noise" is noise that consists of every frequency (all "colors"). In practice, it is restricted to a certain band, just a white light is restricted to the band of visible frequencies in the electromagnetic spectrum.
