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1. |
A square bar of side 5 mm and 200 mm long, experience an extension of 0.01 mm upon a load of 100 N. Then young’s Modulus of the material is: |
A. | 200 GPa |
B. | 800 GPa |
C. | 80 GPa |
D. | 400 GPa |
Answer» D. 400 GPa | |