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A spectral line that appears at a wavelength of 321 nm in the laboratory appears at a wavelength of 328 nm in the spectrum of a distant obect we say that the object's spectrum is?
Wiki User
∙ 9y ago
A spectral line that appears at a wavelength of 321 nm in the laboratory appears at a wavelength of 328 nm in the spectrum of a distant object. We say that the object's spectrum is red shifted.
Wiki User
∙ 9y ago
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What spectrum is produced by a hot gas under low pressure and appears in a series of bright lines?
Emission Spectrum
Why Is riboflavin solution yellow?
Riboflavin solution is yellow because of its structure and the light spectrum. Its structure absorbs all light in the spectrum but yellow, so it reflects that color back to the human eye and appears yellow.
Which equation shows how frequency is related to velocity and wavelength?
No suitable equation appears on the list of choices that you posted along with the question.
What is the term for light energy that appears violet to red?
Its NT light energy it is the dispersion or splitting of light due 2 refraction. It is called 'spectrum' of light.
In which case will the woman see a just a spectrum that is almost entirely black except for few bright emission lines?
The spectrum that she will be observing is called an emission spectrum, in which electrons are excited to a higher energy state and then drop back down to the ground state, during which the electrons will emit photons of specific wavelengths, which will be observed as bright lines of color on what appears to be a black background.
Does frequency determine where a light wave appears on the electromagnetic spectrum?
Yes. c=fL where L = wavelength, c=speed of light and f = frequency (I cannot write the Greek letter lamda for wavelength)
What is a use of examining light spectra?
One use of light spectra has an application in astronomy. When looking at distant objects like galaxies, you can tell if they are moving away from you or closer to you. If the spectral light appears blue (blue-shift) it means that the object is moving toward you, if the spectral light is red (red-shift) it means that the object is moving away from you. Another astronomy application is to look at the light from a star through a spectrum and by doing so you can figure out the chemical composition of the star just by the color of its spectrum.
Which light has the longest wavelength and the shortest frequency?
The longest visible wavelength of light appears red. "Longest wavelength" is equivalent to 'lowest frequency'.
How does the color of a material affect how much light is reflected from it?
Light is nothing but electromagnetic waves. Earth receives energy from sun in the form of huge electromagnetic spectrum. In that spectrum human eye can sense only 0.4 micro m to 0.7 micro m wavelengths. 0.4 to 0.5 micro m waves appears as blue, 0.5 to 0.6 micro m waves appears as green and 0.6 to 0.7 micro m waves appears as red. N ow it depends upon material's surface roughness that which wavelength to be reflect. Water absorbs o.55 to 14 mm waves and reflects 0.4 to 0.55 mm waves, that's why water appears blue. Where as leaves of tree absorbs blue and red range of light waves, and reflects green light reflects from it. This reflectance of any material is known as SPECTRAL REFLECTANCE of that material.
What spectrum is produced by a hot gas under low pressure and appears in a series of bright lines?
Emission Spectrum
What do you call the spectrum of colours that sometimes appears in the sky?
um... an aurora?
What appears when colors are absorbed into a stars spectrum?
light appears it feels really hot because of all the stars and they are very big so that appears and lots of light
Do noble gases form compounds with very bright colors?
The Noble Gases are colourless, monatomic elements. When they are excited electrically, each gas exhibits a distinctive set of spectral lines, characteristic of that element. Helium has five lines in the visible spectrum dominated by yellow; Neon has quite a few lines in the visible spectrum but appears orange to red; Argon also appears orange to red and Krypton appears more green and Xenon is blue - green.
What happens when light waves strike a black wall?
The reason the wall appears black is that it absorbs light in the visible spectrum (~400nm to ~700 nm in wavelength); otherwise, the wall is no longer black. A green wall reflects green light (~500 nm) but absorbs all else. ===========================
Does gray have a wavelength?
grey isnt a colour - it is a combination of light and dark if were talking in terms of wavelength. grey/black/white arent in the light spectrum (rainbow) because they arent colours/ they dont have photons. white light (sunlight/lightbulb light) is white because it contains all the colours in the spectrum of light. black is the absense of light (if its say a black dog in the daytime, its coat doesnt relect light as much as other objects which do like a yellow dog whose coat reflects light off it in a certain intensity so that to humans it appears yellow)
What colors are reflected by an object that appears black?
An object that appears black is absorbing all colors therefore none of the colors in the spectrum are being reflected.
What is the color of an opaque object determined?
the wave length of light that is absorbed by the object determines color--White refects all eye perceptible colors where as black absorbes The colour of an opaque object is determined by the wavelength of the visible spectrum that it reflects. Light is made up of 7 colours, each having a specific wavelength range. Consider an object which appears green to the eye. Actually the object is not green in colour, it only reflects the waves pertaining to green wavelength range. All other wavelength are either transmitted or absorbed. The reflected wave reaches our retina and is perceived as that colour.
