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What happens on the surface of a material

by shivadevrao
Tags: material, surface
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shivadevrao
#1
Jul8-13, 10:00 AM
P: 7
Hello friends,

Every object has certain color, because it reflects that potion of light & absorbs all other visible radiation,

What is the mechanism that happens on the surface of a body, which makes it reflect certain portion & absorb rest portion.
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mfb
#2
Jul8-13, 01:30 PM
Mentor
P: 12,113
How much do you know about quantum mechanics and electron energy levels?

The basic idea: electrons in the material cannot react to all incoming light, just some frequency ("color") ranges. In those ranges, they can absorb and re-emit light, or absorb light and release the gained energy to the surrounding material.
That is not a perfect description, and not all processes follow that pattern, but it should give some idea what happens.
shivadevrao
#3
Jul10-13, 09:35 AM
P: 7
I have fair knowledge about electron energy level & quantum mechanics,

can you please guide me to understand this phenomenon.

Thank you.


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