Which one of the following is the Young's mod | vedclass

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(D) Young's modulus $(Y)$ is defined as the ratio of stress to strain within the elastic limit (linear region of the graph).From the given graph,we se

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$2.0 	imes 10^{11}$

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(D) Young's modulus $(Y)$ is defined as the ratio of stress to strain within the elastic limit (linear region of the graph).From the given graph,we select a point in the linear region where stress is $8 	imes 10^7 \ N/m^2$ and the corresponding strain is $4 	imes 10^{-4}$.Using the formula $Y = \frac{	ext{Stress}}{	ext{Strain}}$:$Y = \frac{8 	imes 10^7}{4 	imes 10^{-4}}$$Y = 2 	imes 10^{11} \ N/m^2$.Therefore,the correct option is $(D)$.

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?

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