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Q. |
The stress required to produce same deformation is higher in case of......... polycrystalline material as compared to ..... ...polycrystalline materials. |
A. | coarse grained,fin e grained |
B. | fine grained,co ar se grained |
C. | both a and b |
D. | none |
Answer» B. fine grained,co ar se grained |
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