The surface tension of water is 72 dyne//cm. Express is in SI units. – InterviewSolution

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1.	The surface tension of water is 72 dyne//cm. Express is in SI units.
Answer» Correct Answer - 0.072 N//m Surface tension, `sigma = (F)/(I) = [M^1 L^0T^(-2)]` Here, `n_1 = 72, M_1 = 1g, T_1 = 1s` `n_2 =?, M_2 =1kg, T_2 =1s` `n_2 = n_1((M_1)/(M_2))^1((T_1)/(T_2))^(-2) = 72 ((1g)/(1kg))^1((1s)/(1s))^(-2)` `=72xx10^(-3) =0.072N//,`

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