The coefficient of superficial expansion of a solid is $2 \times 10^{-5} {°C^{-1}}$. It's coefficient of linear expansion is
The coefficient of superficial expansion of a solid is $2 \times 10^{-5} {°C^{-1}}$. It's coefficient of linear expansion is
- A
$4 \times 10^{-5} {°C^{-1}}$
- B
$3 \times 10^{-5} {°C^{-1}}$
- C
$2 \times 10^{-5} {°C^{-1}}$
- D
$1 \times 10^{-5} {°C^{-1}}$
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