Water was found to rise to a height of 7.4 mm in a tube of internal radius 2.0 mm at room temperature .Given its density as 1.0 g.cm-3, What is the surface tension of water?
A) 0.15 N.m-1
B) 0.036 N.m-1
C) 7.3 * 10-8 N.m-1
D) 0.073 N.m-1
E) 1.5 * 10-7 N.m-1
Correct Answer:
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