The following observations were taken for determining

The following observations were taken for determining surface tensiton $\mathrm{T}$ of water by capillary method:

Diameter of capilary, $\mathrm{D}=1.25 \times 10^{-2} \mathrm{~m}$

rise of water, $\mathrm{h}=1.45 \times 10^{-2} \mathrm{~m}$

Using $g=9.80 \mathrm{~m} / \mathrm{s}^{2}$ and the simplified relation

$\mathrm{T}=\frac{\text { rhg }}{2} \times 10^{3} \mathrm{~N} / \mathrm{m}$, the possible error in surface tension is closest to :