Which one of the following is the Young’s modulus $($in $N/m^2)$ for the wire having the stress-strain curve shown in the figure
Medium
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(d) Young’s modulus is defined only in elastic region and
$Y = \frac{{{\rm{Stress}}}}{{{\rm{Strain}}}} = \,\frac{{8 \times {{10}^7}}}{{4 \times {{10}^{ - 4}}}} = 2 \times {10^{11}}\,\,N/{m^2}$
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