The length of a metallic rod is $5 \, m$ at $0^{\circ}C$ and becomes $5.01 \, m$ on heating up to $100^{\circ}C$. The coefficient of linear expansion of the metal is:
- A$2.33 \times 10^{-5} \, ^{\circ}C^{-1}$
- B$6.0 \times 10^{-5} \, ^{\circ}C^{-1}$
- C$4.0 \times 10^{-5} \, ^{\circ}C^{-1}$
- D$2.0 \times 10^{-5} \, ^{\circ}C^{-1}$
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