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Density

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The following observations were takerdetermining surface tension T of water bycapillary methoddiameter of capillary, D = 1.25 x 10-2 mrise of water, h 1.45 10 mUsing g 9.80 m/s2 and the simplifiedrelation T = mg 103 N/ m、the possible errorin surface tension is closest to(1) 2.4%(3) 0.15%2(2)(4)10%1.5%

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Q. The following observations were taken for determining surface tension

T

of water by capillary method. Diameter of capillary,

D = 1.25 \times 10^{- 2} m

h = 1.45 \times 10^{- 2} m.

g = 9.80 m / s^{2}

and the simplified relation

T = \frac{r g h}{2} \times 10^{3} N / m

, the possible error in surface tension is closest to

Q. The following observations were taken for determining surface tension

T

of water by capillary method. Diameter of capillary,

D = 1.25 \times 10^{- 2} m

h = 1.45 \times 10^{- 2} m.

g = 9.80 m / s^{2}

and the simplified relation

T = \frac{r g h}{2} \times 10^{3} N / m

, the possible error in surface tension is closest to

Q. The following observations were taken for determining surface tension

T

of water by capillary method:
Diameter of capillary,

D = 1.25 \times 10^{- 2} m

h = 1.45 \times 10^{- 2} m

g = 9.80 m / s^{2}

and simplified relation

T = \frac{r h g}{2} \times 10^{3} N / m

, the possible error in surface tension is closest to :

Q. The following observations were taken for determining the surface tension

T

of water by capillary rise method. Diameter of the capillary is

D = 1.25 \times 10^{2} m

, rise of water in capillary tube is

h = 1.45 \times 10^{2} m

g = 9.80 m s^{- 2}

. Using the relation

T = (\frac{r h g}{2}) \times 10^{3} N / m,

the possible percentage error in surface tension

T

Q. The following observations were taken for determining surface tension of water by capillary tube method : Diameter,

D = 1.25 \times 10^{- 2} m

, Rise of water in capillary,

h = 1.45 \times 10^{- 2} m

g = 9.80 m / s^{2}

and using the relation

T = (r h g / 2) \times 10^{3} N / m

. What is the possible error in surface tension,

T

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