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Q: What wavelengths of light does the dye indigo absorb?
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Continue Learning about Physics

What makes up a visible light?

ROYGBIV pronounced by most as roy-g-biv. It is an acronym for red, orange, yellow, green, blue, indigo, violet. This is the order in which they appear in the spectrum. A common way to remember this is "Richard Of York Gave Battle In Vain."


Why blue jeans appear blue?

Blue dye. The blue colored dye, indigo, was a commonly available and popular dye in India back in the old days, the 1600s, when dungarees were first sold to European sailors. When the similar fabric, denim, was created in France and Italy in the 1700's they stuck with indigo. The term "jean" is a corruption of the city of Genoa, Italy, where blue denim was first made.


Why do black colors absorb more light than light colors?

I'm not sure what your background is, but this is actually a very complicated question. Short answer: It all has to do with the structure and symmetry of the molecule which is in question. Long answer: The degree to which substances absorb color depends on the way their chemical and physical properties interact with light. Because of this, this question is a quantum physics question. I'm not sure what your background is, but I can try and answer in generalized terms. Certain chemicals can absorb light. Any dye does, such as Yellow-5, which is in Mountain Dew and myriad other foods. Dyes are able to absorb light because their structures are "conjugated". If you have had organic chemistry, this term should make sense. If you haven't, then this might sound foreign. Highly conjugated compounds have the ability to de-localize their electrons. Because of this, incident light is able to interact with it and be absorbed. In a quantum physics sense, it depends on the size of the "box" which is created from the conjugation of the molecules. If you have any background with the "particle in a box" theory, which is taught in almost every undergraduate and graduate quantum physics course, then you can think of it that way. The greater the degree of conjugation, such as the length of a double bond system, affects the energies of the quantum levels, and thus the energies of light which can be absorbed. So the ability for electrons to be promoted and de-localized is important when considering which wavelengths of light (and therefore colors) can be absorbed. This is based highly on molecular structure. And always remember, symmetry is of paramount importance as well. An excited state must agree in symmetry with the electronic ground state.... (If you have had a molecular spectroscopy course or quantum mechanics, this should also make sense.)


Why blue jeans are blue?

Jeans are blue from the indigo dye that is used in the process of making denim fabric. Actually they aren't entirely blue, denim gets it's unique look from the mix of white threads and indigo threads used in it's weaving.


What color would a yellow cloth appear when illuminated by sunlight?

It would depend on whether or not the dye for the cloth was developed in natural light , sunlight is a natural light , light created by some forms of man made light give off their own spectrum of color , a dye developed under these types of light would not appear the same in sunlight. But generally most dyes are quality controlled to appear as they should under natural light.

Related questions

What physical phenomenon is causing each dye to absorb light of one or more colors and transmit light of other colors?

In a spectrometer, each dye will absorb light of certain colors and transmit light of other colors because of the nature of the atoms of the object and the frequency of the light. If the frequency of the light is the same as the frequency that the electrons in the atoms are vibrating, then the light will be absorbed and transferred into vibrational motion.


What do indigo plants produce?

dye! dye! dye! dye!


What is is indigo?

Indigo is a deep blue purple color. It is also the name of a dye that is derived from the indigo plant.


What is an anil?

An anil is an indigo shrub, or the indigo dye obtained from the plant.


How do you get color?

Based upon the light spectrum colors are different wavelengths of light. Think about it as on the same wavelength as microwave and gamma.


A plant raised to make dye in South Carolina?

"Indigo." and rice


What is acts as a color filter?

A pigment in a material, such as a dye or ink, can act as a color filter by selectively absorbing certain wavelengths of light and transmitting others. The absorbed wavelengths are subtracted from the light passing through, resulting in a tinted appearance.


What is indigo farming?

Means growing the plant used to make indigo dye. Indigo is sort of a red/purple.


What plant was used for blue dye?

Indigo


What is the name of the plant used to make a valuable blue dye?

Indigo plant


What is a 4 letter word for 'indigo dye' that starts with the letter A and ends with 'l'?

"Anil" is a word used for the indigo plant or the dye obtained from it.


Do red dye absorb the red component of white light?

it mainly reflects red, absorbs green + blue