2007-02-11 21:42:01 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Biology
0. What they are actually seeing is a reflection of the visible light off of an object...not the color itself.
2007-02-12 01:50:11 · answer #1 · answered by Brandon W 5 · 0⤊ 1⤋
The answer to this question is unclear, because of differences of opinion about just what constitutes a distinctive color. As an example, colors can appear to change depending on lighting sources or reflective properties of a surface. Also, many complexities are involved with the way the human eye and brain work together to recreate a color image.
The human eye's light sensitive cells (primarily, cones) absorb primary colors of red, green, and blue that manifest through different wave lengths of light. Mixtures of those primary colors then give us all the many hues and shades of colors that enrich our world.
Some sources say millions of potential colors exist, although the human eye is unable to distinguish between all of them.
2007-02-11 21:51:01 · answer #2 · answered by mj 2 · 0⤊ 0⤋
Scientists' closest estimate is millions and millions. The human eye can perceive radiation with a wavelength of 380 nm to 740 nm (this is the emission spectrum, or the ROY G BIV colors). As we know, each color has numerous different shades. This number has to be estimated because each human perceives colors a bit differently.
2007-02-11 23:02:06 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Depends on how many types of cones your retina has... 0,1,2,3,or even 4 different types of cones have been reported in the human eye. Your perception of colour depends on the types and number of cones your retina has (and to some degree the number of rods). Although most people can agree what 'pink' is (unless you're red-green colour blind) or 'blue' the perceptual experience is unique.
2007-02-11 21:49:09 · answer #4 · answered by Jenny M 2 · 0⤊ 0⤋
a normal human eye (excluding those that don't work, or there is reduced visibility due to aging) can see Red, Orange, Yellow, Green, Blue, Indigo, violet, these are the colours in the visible spectrum, which ranges from 380-760 nanometers in wavelength, it is impossible to see anything beyond this with the naked human eye
2007-02-11 22:32:31 · answer #5 · answered by luke0206 1 · 0⤊ 1⤋
Only three: Red, Green, Blue.
Our eyes mix these three colours in proportion to their intensities like mixing paint on a pallet and this give us all the colours we can see.
2007-02-11 21:49:15 · answer #6 · answered by Anonymous · 2⤊ 1⤋