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Visible Light Spectrum
Join us here to ask and answer questions on the "illuminating" topic of the visible light spectrum. This includes questions about: refraction, reflection, rainbows, prisms, mixing colored lights, and the spectrum of colors that make up white light.
1,220 Questions
Why are the carotenoid colors visible in the fall?
Carotenoids are pigments responsible for yellow, orange, and red colors in leaves. In the fall, chlorophyll production decreases, allowing carotenoid pigments to become more visible as they were masked by chlorophyll during the growing season. This change in pigmentation causes the vibrant fall colors we see.
What is the name of the glass that can split white light into different colour's?
The glass is called a prism. When white light enters a prism, it is refracted and separated into its component colors due to the differing wavelengths of each color of light. This effect is known as dispersion.
How far are satilies and space junk from the sun?
All artificial Earth satellites are in orbits that keep them closer to Earth than the Moon is.
And the Sun is about 400 times farther from Earth than the Moon is. So you'd have to
say that artificiall satellites are essentially the same distance from the Sun as the Earth
is, within a fraction of 1 percent.
The question is a little bit like asking: "If I stand 100 yards from the Sears Tower, then
how far is my hair and my fingernails from it ?"
What determines color order of visible light in the electromagnetic spectrum?
The color order of visible light in the electromagnetic spectrum is determined by the wavelength of the light. Light with longer wavelengths appears red, while light with shorter wavelengths appears violet. In between these are the colors of the rainbow: red, orange, yellow, green, blue, indigo, and violet.
Can a visible light penetrare earth atmosphere?
No. It is not possible to see the Sun, Moon, or any stars. For that matter, other
people are likewise invisible to you if there is any air between you and them.
Another answer:
The question describes the type of light of interest as "visible" light. By definition, then,
it must be referring to light that can propagate from place to place without appreciable
attenuation, and be detected by the eye. This process, defined by the question itself,
requires that the atmosphere be transparent, not opaque. For if the light could not
penetrate earth atmosphere, then it must follow as the night the day, that that
selfsame light is ... ipso facto, prima facie, fragrant dilecto, pro bono and choclo molto ...
NOT what one could in anywise refer to as the "visible" kind.
What happens when all the seven colours are missing in spectrum of white light?
If you believe that white light is made up of seven colors, and none of them is there,
then there would be no visible light at all, and you would be unable to perceive your
hand in front of your face, or anyone else's in front of anyone else's for that matter.
Does the suns spectrum change throughout the day?
No, the sun's spectrum remains relatively constant throughout the day. The changes we see in sunlight, like color shifts during sunrise and sunset, are due to the scattering of light in the Earth's atmosphere, not changes in the sun's spectrum itself.
What is the definition of visible light waves?
Visible light waves are a form of electromagnetic radiation that can be seen by the human eye. They have wavelengths in the range of approximately 400 to 700 nanometers, and the different wavelengths correspond to different colors that we perceive in the world around us.
No - light is not formed by molecules.
Molecules are groups of atoms bonded together by chemical bonds. Examples are water (two atoms of hydrogen and one atom of oxygen, H2O, and methanoic
acid, HCOOH).
Light is formed by elementary particles of the boson category called photons. Since in quantum mechanic particles are described by a quantum field, light can also be seen as an electromagnetic field that can be described through two related vector field: the electrical and the magnetic field (or through a Minkosky
four dimensional tensor collecting the two vector components). To be precise visible light (that we generally call simply light) is an electromagnetic field oscillating in a well precise frequency interval where the human eye is sensible and can detect photons. Since different frequencies of visible light are sensed like different elementary colors by the human brain elaborating information coming from eyes, in the visible frequency band light frequencies are also called
colors.
Photons are responsible of electromagnetic interactions, so that many chemical bonds forming molecules can be interpreted in quantum mechanics as exchange of photons between the involved atoms. For example this is the case of the ion bond binding the Cl (Chloride) and Na (Sodium)
ions in common table salt
Where can you see absorbed light?
Absorbed light can be observed in objects that appear colored. When an object absorbs certain wavelengths of light and reflects others, our eyes perceive the reflected light as color. This phenomenon is what allows us to see different colors in our everyday surroundings.
Does violet light have the highest frequency?
The highest frequency in the visible portion of the electromagnetic spectrum
is the last color you can see on the blue/violet end of the rainbow.
Does visible light have high or low energy?
Visible light has moderate energy compared to other forms of electromagnetic radiation. It falls within the range of wavelengths that are visible to the human eye, with shorter wavelengths of visible light corresponding to higher energy levels.
Do hubble telescopes only uses visible light?
No, Hubble Space Telescope uses a variety of wavelengths to observe the universe, including ultraviolet, visible, and near-infrared light. This allows it to capture a wide range of astronomical phenomena and provide a more comprehensive understanding of the cosmos.
Is red is the longest wavelength of light visible to the human eye?
The red end of the spectrum. Red has lower frequency, lower energy and longer wavelength than the blue end of the spectrum.
Does a glass of water transmit visible light?
Yes, a glass of water can transmit visible light. Water is a transparent substance, meaning that light can pass through it without being scattered. The amount of light transmitted through the water may vary depending on its clarity and any impurities present.
Does the flame of the gas stove give light of visible wavelength?
Certainly; you can see the light that it gives off.
Scientists use a spectroscope to break visible light from a star into its component colors. This instrument is specially designed to observe and analyze the spectral lines produced by different elements in the star's atmosphere, providing valuable information about its composition and physical properties. Telescopes are used to collect and focus the light, while spectroscopes are used to disperse and analyze it.
What happens when light strikes a smooth surface?
When light strikes a smooth surface, it gets reflected in a single direction based on the law of reflection. The angle of incidence is equal to the angle of reflection. This phenomenon is what causes us to see our reflection in mirrors.
How is color related to the wavelength of visible light?
It affects the color of the light. If you change the wavelength of visible light, you change the light's color. For instance. Red is a wavelength of approximately 650 nanometers. Orange, about 590. Yellow, 570. Green- 510, Blue, 475 nanometers. Indigo is 445 and Violet is about 400. You can see more here: http://eosweb.larc.nasa.gov/EDDOCS/Wavelengths_for_Colors.html#red
No, watermelons are red or pink on the inside due to the presence of lycopene, a pigment that gives them their color. The color change does not happen instantaneously when the fruit comes in contact with light; it develops as the watermelon ripens on the vine.
Yes, neon lights and fluorescent lights both create light through excited gas molecules emitting photons. However, neon lights use neon gas, whereas fluorescent lights use mercury vapor and phosphor coating to produce a wider spectrum of colors.
What is visible light and what portion can humans detect?
Visible light waves are the electromagnetic waves which are detected by the human eye. They make up only a small part of the electromagnetic spectrum.
So, visible light is any light in which the human eye can detect.
Which has more photons a bright red light or a dim blue light?
A bright red light would have more photons compared to a dim blue light. The brightness of a light source is related to the number of photons emitted per unit time, so a brighter light source will have more photons.
Ultraviolet radiation is the range of electromagnetic waves with frequencies higher than violet on the visible spectrum. It has shorter wavelengths and higher energy than visible light. Exposure to UV radiation can have harmful effects on living organisms.
Who have longer wavelengths visible light or radio waves?
The longest radio wave used for communication is around 3 millimeters long.
The shortest visible wavelength of light is around 0.0004 millimeters long.
