JEE Main | 2016Alcohol, Phenol and EtherMedium
Question
The following observations were taken for determining surface tension T of water by capillary method:
diameter of capillary, D = 1.25 × 10–2 m
rise of water, h = 1.45 × 10–2 m.
Using g = 9.80 m/s2 and the simplified relation
, the possible error in surface tension is closest to
Options
A.
0.15%
B.
1.5%
C.
2.4 %
D.
10 %
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