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What is the relationship between permeability and viscosity of water?

(a) Directly proportional

(b) Inversely proportional

(c) Both are equal

(d) None of the mentioned

The question was asked in quiz.

This intriguing question comes from Factors Affecting Permeability in division Permeability of Geotechnical Engineering I

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Right option is (b) Inversely proportional

To elaborate: From Poiseuille’s law, K=Ds2 γw /ɳ

It is found that permeability is directly proportional to the unit weight of water and inversely proportional to its viscosity.

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