Question: Problem 4 A material scientist counts 16 grains per square inch in a photomicrograph taken at a magnification x250. What is the ASTM grain size

Problem 4 A material scientist counts 16 grains per square inch

Problem 4 A material scientist counts 16 grains per square inch in a photomicrograph taken at a magnification x250. What is the ASTM grain size number

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