What is the possible error $(\text{in} \%)$  in surface tension? If the following observations were taken for determining surface tension $T$ of water by capillary method: Diameter of capillary $\left(D\right) =1.50\times {10}^{-2}\mathrm{m},$ Rise of water $\left(\mathrm{h}\right)=3.00\times {10}^{-2}\mathrm{m}$ Using $\mathrm{g}=9.80\mathrm{m}/{\mathrm{s}}^2$ and the simplified relation $\mathrm{T}=\frac{\mathrm{rhg}}{2}\times {10}^3\mathrm{N}/\mathrm{m},$