A 10cm long wire is placed horizontally on the surface of water and a force of 2×10−2 N over its weight is required to take it out from the surface. The surface tension of water in Nm−1 is

2×10−2=T×2l⇒T=10−210×10−2=0.1N/m

A 10cm long wire is placed horizontally on the surface of water and a force of 2×10−2 N over its weight is required to take it out from the surface. The surface tension of water in Nm−1 is

2×10−2=T×2l⇒T=10−210×10−2=0.1N/m

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A 10cm long wire is placed horizontally on the surface of water and a force of $2 \times 10^{- 2} N$ over its weight is required to take it out from the surface. The surface tension of water $(in {Nm}^{- 1})$ is

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$2 \times 10^{- 2} = T \times 2 l \Rightarrow T = \frac{10^{- 2}}{10 \times 10^{- 2}} = 0.1 N / m$

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A 10cm long wire is placed horizontally on the surface of water and a force of 2×10−2 N over its weight is required to take it out from the surface. The surface tension of water in Nm−1 is

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A 10cm long wire is placed horizontally on the surface of water and a force of $2 \times 10^{- 2} N$ over its weight is required to take it out from the surface. The surface tension of water $(in {Nm}^{- 1})$ is