Application of Light

8/9/2019 Application of Light

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Real Life Application ofLight

By: Nataly Venturina


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WHAT IS LIGHT?


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LIGHT

Light is radiant energy, anelectromagnetic radiation that is

visible to the human eye, and isresponsible for the sense of sight. Itis the most popular form of energy.

There are many sources of light anatural source of light is the sun asit plays an important role in our dailylives.


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Real Life Application of Light


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Colors

Numerous expressions in daily lifedescribe the relationship beteen

energy and color: !red hot,! forinstance, or !blue ith cold.! In fact, hoever, red#ith a smaller

fre$uency and a longer avelength

than blue#actually has less energy%therefore, blue ob&ects should be hotter.


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Rainbows

'ain drops perform the role oftiny prisms, dispersing hite

sunlight.In order for a rainbo to be seen,it must be vieed from a speci(c

perspective: the observer mustbe in a position beteen thesunlight and the raindrops.


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Incandescent Light

British scientist )ir umphry-avy /0012/1345 shoed that

electricity running through thinstrips of metal could heat themenough to cause them to give o6

light.


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7dison develop such a lamp#inparticular, decreasing the electrical

resistance in the lamp (lament thepart that is heated5 so that lessenergy ould be re$uired to light it.8sing lo2resistance (laments ofcarbon or platinum, combined ith ahigh2resistance carbon (lament in avacuum2sealed glass container,

7dison produced the (rst practical


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9maingly, only about /;< of theenergy output from a typicalincandescent light bulb is in the form ofvisible light% the rest comes through theinfrared region of the spectrum,producing heat rather than light that

people can use.oever, in many applications today,

+uorescent light ta*es the place ofincandescent light.


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Lasers

9 laser is an extremely focused,extremely narro, and extremely

poerful beam of light.9ctually, the term laser is an acronym,standing for L ightA mpli(cationby S imulated E mission of R adiation.

9 laser consists of three components:an optical cavity, an energy source,and an active medium.


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Laser Application

The production of compact discs=-s5. Lasers etch information onto a

surface, and because of the lightbeam>s $ualities, can record far moreinformation in much less space thanthe old2fashioned ays of producingphonograph records.

Lasers used in the production of =-2'?@ 'ead2?nly @emory5 dis*s are

able to condense huge amounts of


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9nother ay that lasers a6ecteveryday life is in the (eld of (ber

optics, hich uses pulses of laser lightto send information on glass strands.Before the advent of (ber2optic

communications, telephone calls ere

relayed on thic* bundles of copperire% ith the appearance of this netechnology, a glass ire no thic*er

than a human hair no carries


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Lasers are also used in scanners,such as the price2code chec*ers at

supermar*ets and various *inds oftags that prevent thefts of boo*sfrom libraries or clothing items

from stores. In an industrial setting, heating

lasers can drill through solid metal,

or in an operating room, lasers can


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Lasers are also used for guidingmissiles, and to help building

contractors ensure that allsand +oors and ceilings are inproper alignment.


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Uses of Light

Ae use visible light to see thecolors.

Ae also use Visible Light to seethe di6erent things.

Visible light allos you to see

the colours that you decorateyour house ith.


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Visible light helps *eeo you sameand one of them are trac

lights., red is to stop, yello is toslo don, and green is to go.

Ahile you>re doing art or*,

visible light lets you to see thecolors that you are using.


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References

http:CC.scienceclari(ed.comCeverydayC'eal2Life2Dhysics2Vol2E2Biology2V

ol2/CLight2'eal2life2applications.html

https:CCsites.google.comCsiteC&&msFthg

radeCem2spectrumC9ccord2@elodyCvisibl2lightCvisible2light2in2our2daily2lives
http://www.scienceclarified.com/everyday/Real-Life-Physics-Vol-3-Biology-Vol-1/Light-Real-life-applications.htmlhttp://www.scienceclarified.com/everyday/Real-Life-Physics-Vol-3-Biology-Vol-1/Light-Real-life-applications.htmlhttp://www.scienceclarified.com/everyday/Real-Life-Physics-Vol-3-Biology-Vol-1/Light-Real-life-applications.htmlhttp://www.scienceclarified.com/everyday/Real-Life-Physics-Vol-3-Biology-Vol-1/Light-Real-life-applications.htmlhttps://sites.google.com/site/jjms6thgrade/em-spectrum/Accord-Melody/visible-light/visible-light-in-our-daily-liveshttps://sites.google.com/site/jjms6thgrade/em-spectrum/Accord-Melody/visible-light/visible-light-in-our-daily-liveshttps://sites.google.com/site/jjms6thgrade/em-spectrum/Accord-Melody/visible-light/visible-light-in-our-daily-liveshttps://sites.google.com/site/jjms6thgrade/em-spectrum/Accord-Melody/visible-light/visible-light-in-our-daily-liveshttps://sites.google.com/site/jjms6thgrade/em-spectrum/Accord-Melody/visible-light/visible-light-in-our-daily-liveshttps://sites.google.com/site/jjms6thgrade/em-spectrum/Accord-Melody/visible-light/visible-light-in-our-daily-liveshttps://sites.google.com/site/jjms6thgrade/em-spectrum/Accord-Melody/visible-light/visible-light-in-our-daily-liveshttps://sites.google.com/site/jjms6thgrade/em-spectrum/Accord-Melody/visible-light/visible-light-in-our-daily-liveshttp://www.scienceclarified.com/everyday/Real-Life-Physics-Vol-3-Biology-Vol-1/Light-Real-life-applications.htmlhttp://www.scienceclarified.com/everyday/Real-Life-Physics-Vol-3-Biology-Vol-1/Light-Real-life-applications.htmlhttp://www.scienceclarified.com/everyday/Real-Life-Physics-Vol-3-Biology-Vol-1/Light-Real-life-applications.htmlhttp://www.scienceclarified.com/everyday/Real-Life-Physics-Vol-3-Biology-Vol-1/Light-Real-life-applications.html


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THAN!"U#


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Documents

Application of Light