A) \[\text{5 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-3}\,}}\text{J}\]
B) \[\text{2}\text{.5 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-3}\,}}\text{J}\]
C) \[\text{1 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-1}\,}}\text{J}\]
D) \[\text{5 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-1}\,}}\text{J}\]
Correct Answer: C
Solution :
Surface energy\[=T.A\] \[\begin{align} & =5\times 0.02=0.1 \\ & =1\times {{10}^{-1}}\,\text{J} \\ \end{align}\]
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