The following two observtions were taken for determining surface tension T of waer by capillary method:Diameter of capillary, D=1.25×10−2 m andrise of watter, h=1.45×10−2 m.Using g=9.80 ms−2 and thhe simplified relation, T=rhg2×103 Nm−1, where r is radius of capillary tueb, the maximum error in surface tension is close to

The following two observtions were taken for determining surface tensi

1.	The following two observtions were taken for determining surface tension T of waer by capillary method:Diameter of capillary, D=1.25×10−2 m andrise of watter, h=1.45×10−2 m.Using g=9.80 ms−2 and thhe simplified relation, T=rhg2×103 Nm−1, where r is radius of capillary tueb, the maximum error in surface tension is close to
Answer» The following two observtions were taken for determining surface tension $T$ of waer by capillary method: Diameter of capillary, $D = 1.25 \times 10^{- 2} m$ andrise of watter, $h = 1.45 \times 10^{- 2} m$ . Using $g = 9.80 m s^{- 2}$ and thhe simplified relation, $T = \frac{r h g}{2} \times 10^{3} N m^{- 1}$ , where $r$ is radius of capillary tueb, the maximum error in surface tension is close to

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