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How much amount of incident radiation is reflected at lower power densities?(a) 10 percent(b) 20 percent(c) 50 percent(d) 90 percentThis question was posed to me in an interview.The question is from LBM-Material Removal in portion Thermal Processes of Advanced Machining

Answer» RIGHT ANSWER is (d) 90 PERCENT

The best I can explain: Most of the metals reflect NEARLY 90 percent of incident radiation if the POWER densities are low.


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