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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > An engineer wants to have the same flow rate of water and light machine oil from the pipes of the same length and width the same pressure head. what should be ratio of the radii of the two pipes? given that viscosity of water = 0.01 poise and that of light machine oil = 11 poise.

An engineer wants to have the same flow rate of water and light machine oil from the pipes of the same length and width the same pressure head. what should be ratio of the radii of the two pipes? given that viscosity of water = 0.01 poise and that of light machine oil = 11 poise.

what should be the maximum average velocity of water in a tube of diameter 2 cm so that the flow is laminar? the viscosity of water is 10^-3 Ns/m^2.