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Which of the following are different types of lasers used in Laser beam machining?(a) Solid-state ion(b) Neutral gas(c) Semiconductor(d) All of the mentionedThis question was posed to me by my school principal while I was bunking the class.This key question is from Laser Beam Machining-Introduction in section Thermal Processes of Advanced Machining |
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Answer» Right CHOICE is (d) All of the mentioned |
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