## Q(1) : for an ASTM grain size of 8 ,&nbs...

Q(1) : for an ASTM grain size of 8 , approximately how many grains would there be per square centimeter :

(A) at a magnification of 100x , and (b) without any magnification?

Q(2): determine the ASTM grain size number if 25 grains per square centimeter are measured at a magnification of 600x?

Q(3): determine the ASTM grain size number if 20 grains per square centimeter are measured at a magnification of 50x?

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Mechanical Engineering
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