Question

Blood is flowing at the rate of 100 cm³/s in a capillary of cross-sectional area 0.25 m². The velocity of flow is –

• A. .1mm/s
• B. 0.2 mm/s
• C. 0.3 mm/s
• D. 0.4 mm/s

Answer 1

Answer: (A)

.1mm/s

Answer 2

$\cos\theta = \frac{h}{\mathcal{l}}$ Ž h = l cos q

$\mathcal{l} = \frac{h}{\cos\theta}$

Ž $\mathcal{l} = \frac{2}{\cos 60{^\circ}} \Rightarrow 4cm$