The following observations were taken for determining surface tension $T$ of water by capillary meth

Question

The following observations were taken for determining surface tension $T$ of water by capillary method:\ Diameter of capillary, $D=1.25 	imes 10^{-2} \mathrm{~m}$ rise of water, $h=1.45 	imes 10^{-2} \mathrm{~m}$.\ Using $g=9.80 \mathrm{~m} \mathrm{~s}^{-2}$ and the simplified relation, $T=\frac{r h g}{2} 	imes 10^{3} \mathrm{Nm}^{-1}$, the possible error in surface tension is closest to\

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(b)\