The following observations were taken for determining surface tension T of water by capillary method: diameter of capillary, D =1.25 × 10^-2 m rise…

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