If the area of a photograph measured 7.812 in 2 and 23 grains were documented at 250

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If the area of a photograph measured 7.812 in2 and 23 grains were documented at 250 x magnification, what would the ASTM grain size number (n) be?

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The Science And Engineering Of Materials

ISBN: 9781305076761

7th Edition

Authors: Donald R. Askeland, Wendelin J. Wright

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