The following observations were taken for determining the surface tension of water by capillary tube method, diameter of capillary $\mathrm{D}=1.25\times {10}^{-2}\mathrm{m}$ and rise of water in capillary, $\mathrm{h}=1.45\times {10}^{-2} \mathrm{m}.$ Taking $\mathrm{g}=9.80 {\mathrm{ms}}^{-2}$ and using the relation: $\mathrm{T}=\left(\mathrm{rgh}/2\right)\times {10}^3 {\mathrm{Nm}}^{-1}$, what is the possible error in measurement of surface tension T?