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Why does visible light (color) only seem to reveal matter?
...or why does atoms of matter make color apparent en masse...why isn't everything translucent?
Okay, I know that things absorb and reflect in order to reveal colour, but what is happening atomically, at the wavelength which decides what color is being absorbed and what is being reflected?
Something in the atomic structure? The size of the atom? resonant frequencies?
thanks
2 Answers
- Anonymous1 decade agoFavorite Answer
You know how they shine light on food in cafeterias to keep them warm?
Everything absorbs/reflects light at various frequencies. Absorbed energy can mean many things...the molecules may rotate, twist, break apart, make electronic transitions, etc.
What makes only certain frequencies absorbed and the rest reflected has to do with the fact that energy levels in atoms and molecules are quantized. Only certain levels of energy can be taken in to make the molecules excited.
Look at this: http://en.wikipedia.org/wiki/Spectroscopy
Source(s): physics classes - Anonymous1 decade ago
it is the atomic structure that determines color, that includes the size of the atom. im not sure what determines the "color of the molecule / atom" however the result is that wen you look at a banana, it is every color except yellow, every color gets absorbed into the banana peel except yellow becus the banana in reality is not yellow, it's every color but yellow so everything else gets absorbed while yellow is reflected. the tricky colors, white and black, white is no colors (okay.... assuming that were talking about perfectly white colors), thats why every color is being reflected and you see all the colors which ur brain cannot connpensate (im a sucky speller) so it just interprets it as a clear "white" color. black, black is every color, so everything is getting absorbed which... nothing is being bounced back to your eyes so you see a dark color.