Q)
(chatquestion)...Q.30
The following observations were taken for determining surface tension T of water by capillary method :
diameter of capillary, D 1.25 x 10 m
rise of water, h = 1.45 x 102 m.
rhg
Using g = 9.80 m/s and the simplified relation T =
x 10° N/m, the possible error in surface tension is
2
closest to -
(1) 0.15%
(2) 1.5%
(3) 2.4%
(4) 10%
1 Answer
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