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Q.

The average speed of blood in the artery (diameter =2cm) during the resting part of heart's cycle is about 30cm s−1 . Is the flow laminar or turbulent? Density of blood 1.05×103Kg m−3 . Explain your answer. Coefficient of viscosity of blood =2.08×10-3Pa s

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a

Laminar

b

Turbulent

c

Both

d

None

answer is B.

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Detailed Solution

R=vρdη =30×10−2×1.05×103×2×10−22.08×10−3R=3038R > 1500 turbulent  flow
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