The maximum average velocity of water in a tube of diameter \( 2 \mathrm{~cm} \) so that the flo....

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The maximum average velocity of water in a tube of diameter \( 2 \mathrm{~cm} \) so that the flow becomes laminar is [Viscosity of water is \( 10^{-3} \mathrm{~N} \mathrm{~m}^{-2} \mathrm{~s}^{-1} \), take \( R_{n}=200 \) ]
P
(1) \( 1 \mathrm{~m} \mathrm{~s}^{-1} \)
(2) \( 0.01 \mathrm{~m} \mathrm{~s}^{-1} \)
(3) \( 10 \mathrm{~m} \mathrm{~s}^{-1} \)
(4) \( 100 \mathrm{~m} \mathrm{~s}^{-1} \)


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