A Newtonion liquid (ρ = density, μ = viscosity) is flowing with velocity v in

Question

A Newtonion liquid (ρ = density, μ = viscosity) is flowing with velocity v in a tube of diameter 'D'. Let Δp be the pressure drop across the length 'L'. For a laminar flow, Δp is proportional to

Options:

A . L ρv²/D

B . L μ;V/D²

C . D ρv²/L

D . Μ V/L

Answer: Option A

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