A $100\,m$ long wire having cross-sectional area $6.25 \times 10^{-4}\,m ^2$ and Young's modulus is $10^{10}\,Nm ^{-2}$ is subjected to a load of $250\,N$, then the elongation in the wire will be :
A $100\,m$ long wire having cross-sectional area $6.25 \times 10^{-4}\,m ^2$ and Young's modulus is $10^{10}\,Nm ^{-2}$ is subjected to a load of $250\,N$, then the elongation in the wire will be :
- [JEE MAIN 2023]
- A
$6.25 \times 10^{-3}\,m$
- B
$4 \times 10^{-4}\,m$
- C
$6.25 \times 10^{-6}\,m$
- D
$4 \times 10^{-3}\,m$
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