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Lasers and mirrors

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kermit911 | 17:25 Thu 28th Jul 2005 | Science
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Say you have a laser that will melt right through a peice of steel.  Can you reflect the laser with a mirror?  If so Y dosn't the laser melt the mirror?
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Avatar Image Hamish
It depends on the quality of the mirror. Mirrors do not reflect back all the light that falls on them - some of it is absorbed and this will heat the mirror. A perfect mirror will reflect all the light and you would not be able to damage it - but that is accademic as there is no such thing. A mirror wich reflects the light much more efficiently than the steel will not be dammaged as rapidly.
12:38 Fri 29th Jul 2005
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