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The color of a beam of light is dependent on its wavelength. A laser will appear as one color because all the light being emitted from it is the same wavelength. This is also why lasers and laser pointers always have such a tight beam. By contrast, flashlights (which have much wider beams, and rely on mirrored interiors to amplify the light) have light at a variety of wavelengths, which is why the light is ultimately "colorless".
Wiki User
∙ 9y ago
Wiki User
∙ 13y agoDifferent wavelengths of light.
The color doesn't matter much to the strength --- it's, for example, the size (amount of light emitting material that matters), and other attributes of the laser that matter. One can change the color by using different materials for generating the light. A helium-neon laser generates the familiar red laser light, other materials can generate green laser light, etc.
Wiki User
∙ 11y agoThe only way that all the waves can have all of their peaks lined up
and all of their valleys lined up is if they all have the same length.
Length of the waves . . .
Wave - length . . .
Wavelength . . .
Color . . .
Get it ?
Wiki User
∙ 14y agoThe whole idea of a laser is to be monochromatic, and coherent. There is no use talking about "coherence" (all light pieces in the same phase) if the light is a mixture of different frequencies.
Wiki User
∙ 14y agolaser light is monochromatic due to the phenomenon of stimulated emmision in laser.
Wiki User
∙ 9y agoIt isn't just "more" monochromatic; laser light is monochromatic, ordinary light is not.
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Can light have a single wavelength?
Yes, light can have a single wavelength. A laser generates a coherent beam of light. It's all one frequency, i.e., it's all the same wavelength.
Why laser beam is narrow straightwhere as light from tube light is blury?
That's one of the properties necessary to consider a source of light as a laser source.The light rays in a laser are manipulated so as to make them coherent.
Why laser produces Gaussian beam?
A laser produces a Gaussian beam because of the diffraction effect of the laser beam passing through an aperture. The electric field distribution of the beam follows a Gaussian shape due to the wave nature of light. This results in a beam that has a bell-shaped intensity profile with a narrower central peak and gradually decreasing intensity towards the edges.
What is caution laser beam?
"Caution Laser Beam" is a phrase used on warning signs and labels to alert users and passersby that a laser beam may be present.
How are a laser beam and a flashlight beam alike and different?
A LASER, or Light Amplification by Simulated Emission of Radiation, and is made by causing a particular substance to emit photons, almost all of which are one wavelength. A flashlight, however, uses a light bulb, which emits light due to the filaments, and will spread out. Both, however, are forms of light.
Difference between laser and ordinary light?
Laser lights are spectrally pure, i.e. one wavelength, and they are coherent, i.e. all phota in phase. As a result, the beam of a laser light tends to stay as beam, and not diverge due to scattering.
What does laser beam mean?
A laser is the device itself, the beam is.. well, the beam coming out of the laser.
Can a laser pointer make a rainbow with a prism?
A laser beam consists of a single frequency of light, therefore it cannot form a spectrum or rainbow.
What is a laser modulator used for?
A laser modulator is used to change modulate a beam of light (or laser). The easiest way that they modulate the laser, or light beam, is by changing the rate at which the laser is emitted from the source.
What is an amplified light beam?
laser
Can light have a single wavelength?
Yes, light can have a single wavelength. A laser generates a coherent beam of light. It's all one frequency, i.e., it's all the same wavelength.
Is laser light is parallel beam of light?
yes
What do you call a beam of light so powerful that it can cut through light?
laser beam
In Brother Laser printers, are actual laser rays used for printing?
A beam of light is scanned across the printer's photoreceptor. The harmless light beam is what the word laser is referring to.
What is an Excimer laser?
An instrument that is used to vaporize tissue with a cold, coherent beam of light with a single wavelength in the ultraviolet range.
Why does the laser beam refract?
because it is light
What is the form of light with a strong concentrated beam?
I believe you are referring to a laser beam.
