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The human eye is sensitive to electro-magnetic waves, within a very narrow band. This is known as 'White light'.
This very narrow range has differing wavelengths. Red being the longest wavelength and blue being the shortest wavelength. which we see in a yellow is between this long/short limits of wavelength , hence we see yellow.
Sir Isaac newton( he of gravity fame), in his treatise named 'Optics'. demonstrated the splitting of white light into the colours of the rainbow. Going from longest wavelength to shortest wavelength , the colours are red, orange, yellow, green, blue, violet, & indigo. Which we see in a natural rainbow in that order.
The human eye is NOT sensitive to ultra-violet(UV) nor to infra-red, as they are just outside the sensitivity of the human eye.
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What chemical causes beta carotene to turn yellow?
Beta Carotene can appear yellow, orange, or brown depending on its concentration. A dilute mixture of beta carotene will appear yellow as there isn't enough of it to absorb the extra light needed to make it appear orange.
Why does ZnO appear yellow on heating?
on heating,free electrons occupy spaces created by loss of oxygen from zno and turn yellow :)
What color will appear if you add NaOH to BTB?
Yellow! Fa sho!
What colour is methyl red in alkali?
When you add methyl red to a solution it will indicate it's pH. When the pH is under 4.4 the solution will appear red in color (or maybe pink). When the solution is above pH 6.2 it will appear yellow in color. Any where in between will appear orange. So if you add base to a red/pink or orange solution it will turn yellow as the solution becomes more basic. But I honestly do not know th actual chemical reaction that causes the indictor's color change.
Is iron chloride is a coloured compound?
It depends on the viewing angle: by reflected light the crystals appear dark green, but by transmitted light they appear purple. they also change colour depending on whether they are dry crystals (yellow) or have water attached (green).
Why do stars appear yellow?
it does not
What is the difference in terms of reflection between objects that appear blue and objects that appear yellow?
Blue is hot yellow is not
How can you make a red ball appear yellow?
paint it yellow
Why are stars yellow?
Some stars appear yellow because either they are yellow or the white color can appear different. The spectral types F and G (our sun), contain yellow stars. This is caused by their temperature.
Why does a yellow pencil appear yellow?
because a yellow pencil can only reflect yellow light and that yellow light is what you see from a yellow pencil.
What color would a yellow cloth appear if illuminated with the following types of light blue?
Sunlight: yellow Yellow light: yellow
What chemical causes beta carotene to turn yellow?
Beta Carotene can appear yellow, orange, or brown depending on its concentration. A dilute mixture of beta carotene will appear yellow as there isn't enough of it to absorb the extra light needed to make it appear orange.
What color does Pluto appear?
brownish red yellow
What color yellow sheet of paper will appear looking through blue glass?
will appear black
How will a lemon appear if green light shines on it?
The lemon will appear black as there is no yellow light to be reflected.
What colour would white shoes appear under a yellow disco light?
white shoes appear white because it reflects all 7 colours of white light when fallen on to it.Therefore if only yellow light is fallen on to this object it would give out light rays which are yellow in colour . so shoes would appear yellow.
If yellow light shines on a red car what colour with then appear?
Red because the red absorbs the yellow
