Stress required in a wire to produce $0.1\%$ strain is $4 \times10^8\, N/m^2$. Its yound modulus is $Y_1$. If stress required in other wire to produce $0.3\%$ strain is $6 \times 10^8\, N/m^2$. Its young modulus is $Y_2$. Which relation is correct
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$y=\frac{\text { stress }}{\text { strain }}$
$\mathrm{y}_{1}=\frac{4 \times 10^{8}}{0.1 / 100}=4 \times 10^{11}$
$\mathrm{y}_{2}=\frac{6 \times 10^{8}}{0.3 / 100}=2 \times 10^{11}$
$\Rightarrow \mathrm{y}_{1}=2 \mathrm{y}_{2}$
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