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The color red is the wavelength of the electromagnetic spectrum that is about 650 nanometers (within the range of what is commonly called "visible light"). This represents a particular wavelength (inversely, a particular frequency) that photons of light exist at.
When a photon of this kind exists, it is generally because an atom of a substance has emitted a photon of this wavelength/frequency (a "red" photon). This can happen when a substance receives broad-spectrum (white) light, and absorbs all but the red part of the visible spectrum.
After the red photon has been emitted, it is absorbed by a molecular/enzyme complex called "rhodopsin" in the retina of the eye, where it, then, produces a particular energy "signal" for the optic nerve. This signal travels back to the visual cortex in the occipital lobe of the brain (in the back), and it is "decoded" as "red".
Wiki User
∙ 10y ago
Wiki User
∙ 14y agoCause the light reflect off it into your eyes and makes it red.
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How do colored objects look under colored lights?
If the light is or contains the colour the object it is striking, then the object will appear to be the colour it originally is. If the light is not or does not contain the colour the object it is striking, then object will appear black. This is because an object will only reflect the light that is the same colour as it, all other light is absorbed. For example: Red, yellow, magenta, and white light will make a red object appear red as they all contain red light. Blue, green and cyan light will make a red object appear black.
What is true about an object that looks red?
For an object to appear red, it must reflect only red light. All other colors are absorbed.
If an object absorbs all wavelengths of light except red what color will it appear?
The object will be red, due to the red light of the spectrum being reflected.
What would a white object appear under a red light?
Pink.
What color would a red object appear to be if you shone only green light on it?
it would appear black.
How do colored objects look under colored lights?
If the light is or contains the colour the object it is striking, then the object will appear to be the colour it originally is. If the light is not or does not contain the colour the object it is striking, then object will appear black. This is because an object will only reflect the light that is the same colour as it, all other light is absorbed. For example: Red, yellow, magenta, and white light will make a red object appear red as they all contain red light. Blue, green and cyan light will make a red object appear black.
What is true about an object that looks red?
For an object to appear red, it must reflect only red light. All other colors are absorbed.
Red object when seen to a thick blue glass appear?
Red+Blue=Purple
If an object absorbs all wavelengths of light except red what color will it appear?
The object will be red, due to the red light of the spectrum being reflected.
What color would a red object appear to be if you shone a green light on it?
it would appear black.
What would a white object appear under a red light?
Pink.
What color would a red object appear to be if you shone only green light on it?
it would appear black.
If an object reflects red and green light what color does the object appear to be?
An object that reflects green and red light would be some shade of yellow or orange, depending on the proportions.
What color will a red object appear under green light?
It would appear black because the object would not reflect any of the colors of light back.
What colour will a green object appear if only red light was shone on it?
BLACK
What color will an object appear that reflect red and yellow light frequencies?
Orange
What color will a red object appear if only Red light is shone on it?
It will appear somewhat Orange. This is due to the roughly 650nM wavelength from the red light and the reflection of the yellow at around 380nM.
