The Young's modulus of wire of length \( \mathrm{L} \) and radius \...

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The Young's modulus of wire of length \( \mathrm{L} \) and radius \( \mathrm{r} \) is \( \mathrm{Y} N \) /
P \( \mathrm{m}^{2} \). If the length and radius are reduced to \( \frac{\mathrm{L}}{3} \) and \( \frac{\mathrm{r}}{2} \), then its
\( \mathrm{V} \) Young's modulus will be
a. \( \mathrm{Y} \)
b. \( \frac{3}{4} \mathrm{Y} \)
c. \( 3 \mathrm{Y} \)
d. \( 4 \mathrm{Y} \)
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