An aluminium alloy rod of diameter 15 mm and length 120 mm is subjected to a tensile load of 35,000 N along its axis. The Young's modulus and Poisson's ratio for aluminium are 70 GPa and 0.33 respectively.
A. 0.11
B. 0.014
C. 0.018
D. 0.021
Answer: Option B
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