Lasers work by focusing sound waves:---++ True or False ?
Asked by anantharaman, 02 Aug '09 11:11 am
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The full form of laser is LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION .from this long form it is clear that laser requires the Light and not the sound wave ,so " the statement is false ".Answered by KARTIKAY SHARMA, 02 Aug '09 11:15 am
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