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Q: Why focusing of laser light is better than ordinary light?
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What is the difference between a laser and an ordinary light in terms of colors?

An ordinary light contains more than one colour. A laser is monochromatic.


How lasers and ordinary light different?

a laser is just a focused beam 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 is the difference between laser diffraction and ordinary light diffraction?

I would guess its nothing, because technically speaking a laser uses concentrated light


Which is better light emitting diode or laser diode?

Laser diode


Which is better injection laser diode or light emitting diode?

Laser diode


Is sapphire used to help mankind?

Sapphire is used as a "window" for laser beams and in focusing light in fiber optics.


How is laser light different from incandescent light?

The intensity of light from most light sources is inversely proportional to the square of the distance from the source. So the intensity two meters from an incandescent lamp is one quarter of the intensity at one meter, and at three meters from the lamp the intensity is one ninth of the intensity at one meter. Laser light ideally has the same intensity at any distance.


What makes up laser light and how is it used?

Laser light is different from ordinary light. Laser light consists of light waves that all have the same wavelength, or color. The waves are coherent, or in step. A laser is a device that produces a narrow beam of coherent light. The word laser comes from a phrase that describes how it works: light amplification by stimulated emission of radiation. Light amplification means that the light is strengthened. Stimulated emission means that the atoms emit light when exposed to electromagnetic radiation.


How do you make an ordinary laser pen burn matches and all?

A laser pen does not have enough power to cause a match to burn. It requires about 400 degrees F. to light a might.


How is Light Amplification by Stimulated Emission of Radiation better known?

Laser


How is laser different from other light?

Lasers have only one colour & are focused on an area while ordinary light is made of the colours you see in a rainbow and fan out.