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What should be the maximum average veloc...

What should be the maximum average velocity of water in a tube of diameter 2 em so that the flow is laminar ? Viscosity of water is `10^(-3) Ns m^(-2)` ? For laminar flow R-1000.

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` " " R = (rho vr)/( eta) ,v= ( Reta)/( rho r)`
` " " v= ( 1000 xx 10 ^(-3))/( 10^(3) xx 10 ^(-2)) = 0.1 ms^(-1)`
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