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2006-09-11 03:12:44 · 8 answers · asked by goring 6 in Science & Mathematics Physics

Colors emminate from the materials?

2006-09-11 04:27:08 · update #1

If the frequency ot the light radiation is very high we get electrons coming out ot the material with no color?

2006-09-11 07:34:08 · update #2

Each color has its own temperature?

2006-09-11 16:41:58 · update #3

8 answers

in order to see an object, some light waves must be radiated to it and reflected back to our eyes. when a wave reaches the surface of a matter, some part of it is being absorbed by the surface, and the rest will be reflected.

the ordinary light we can see (also known as "white light) is consisted of 7 spectra : red,orange, yellow, green, blue, indigo, and violet. the combination of thes 7 spectra causes the light to be seen as white. if we take off any of these spectra from the light, it will no longer be seen as white.

now imagine that u enter a room and turn on the light. the lamp radiates the white light. the light reaches the surface of the objects in the room, and then is reflected and your eyes see the reflected light. but in what color? it totaly depends on the nature of the surface of the object.
if the object absorbs non and reflects all the radiant light, you will see the matter white. if it absorbs all the spectrums but red, you will see the matter red. if it reflects blue and white and absorbs the rest, you will see it green, if it absorbs all the spectra and reflects non, you will see it black and so on.
the nature of the surface of the object (where is in exposure to light waves) determines the absobed and reflected spectrum (for instance if it's made up of some matterial that absorbs all the spectra of light, it causes it to be seen as black). and that's why different objects reflect different colors.

2006-09-11 05:47:03 · answer #1 · answered by Anonymous · 0 0

Materials absorb or reflected in certain "lamdas". For example, in the plants there is a pigment, clorphila, that absorb all "lamdas" or colors, except green, which is reflected. As a consecuence, the view of plants is green.

A body looks black because absorb all colors, but emit other kind of radiation (infrared radiation).

2006-09-11 11:09:16 · answer #2 · answered by Juan D 3 · 0 0

Light travels "at the speed of light" as photons or tiny mass-less packets of energy. The photons may have different energy levels where short wavelengths (ultraviolet, gamma rays and X-rays) are more energetic than longer waves (infrared). The different wavelengths of the photons cause them to be captured (or reflected) by the electrons of different atoms. If you see a red disc, the disc's atoms have absorbed all the photons except those that are reflected and enter your eye to interact with special cones on your retina sensitive to red.

2006-09-11 11:14:37 · answer #3 · answered by Kes 7 · 0 0

Reflectivity and absorption are the basic fundamental properties of any materials. Reflecting or absorbing any color is a sub sect of that property.

2006-09-11 11:34:51 · answer #4 · answered by Dr M 5 · 0 0

because different material absorb different colours

when white light ( combination of all colour) is falls upon a red object it absorbs all the colours except red .. and threfore reflects red
and we see the red light and say the object is red

2006-09-11 10:18:47 · answer #5 · answered by pagolpakhi 3 · 0 0

It has to do with the complicated nature of the materials valence (electron) structure.

2006-09-11 10:47:32 · answer #6 · answered by bruinfan 7 · 0 0

diifff substsnce reflect those colors which are not absorbed by them

2006-09-11 10:26:57 · answer #7 · answered by sami1989 2 · 0 0

it is as their nature. otherwise it would had been difficult to distinguish betw. diff. objects.

2006-09-11 10:40:50 · answer #8 · answered by sim 2 · 0 0

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