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What is coherent light?
Coherent light is when all the photons have the same wavelength and are in the same phase.
How do you produce two coherent sources of light?
two coherent light sources are produced by splitting a single light source
A laser produces light that?
is coherent
What are the coherent light source?
The Sun
What is monochromatic coherent light?
a.k.a. "laser"
Is poly chromatic light can be coherent?
Coherent light (like a laser) is a single frequency. Polychromatic light is, by definiation, multiple frequencies and cannot be coherent.
What is a device that produce coherent light?
The name of the device that produces coherent light is LASER.
What is a device producing a coherent light?
The name of the device that produces coherent light is LASER.
What is coherent light?
Coherent light is when all the photons have the same wavelength and are in the same phase.
How do you produce two coherent sources of light?
two coherent light sources are produced by splitting a single light source
A laser produces light that?
is coherent
What are the coherent light source?
The Sun
Is it true or wrong that if the light rays are not coherent you would not be able to see interference?
To generate an interference pattern the light needs to be coherent.
Light of only one wavelength that travels with its crest and troughs aligned?
That's monochromatic, coherent light. A well known source of such light is a laser.
Can you put a LED inside a laser housing to focus it into a beam just like a laser diode would?
No. Unless the LED is specifically a laser, you can not make it focus like a laser by putting it in a housing. A laser produces coherent light, which is why it acts like a beam. A normal LED is not coherent, and you can not make it so. Although you can not make a collimated incoherent light beam able to travel similar distances as a collimated laser beam, you can collimate incoherent light into a beam which would travel some distance with a small amount of divergence.
Can a laser be made from a light bulb?
No. Laser light is coherent. Light bulb light is not.
What is monochromatic coherent light?
a.k.a. "laser"
