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The laser pointer used in classrooms | The CD in a computer or in a hi-fi that are used to read |
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In industry, laser is often used for cutting and microscopic processing. | For military purposes, laser is used to intercept guided missiles. |
Lasers are used to measure distance. |
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Videos :
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http://www.youtube.com/watch?v=iXKG-foaQ90y3SBSbsdiYg
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http://www.youtube.com/watch?v=iXKG-foaQ90y3SBSbsdiYg
http://www.youtube.com/watch?v=48WkYbkhJO4
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