Blood is flowing at the rate of 100 cm3 s- 1 in a capillary of cross-sectional area 0.25 m2 . The velocity of flow is

Question

Blood is flowing at the rate of 100 cm3 s- 1 in a capillary of cross-sectional area 0.25 m2 . The velocity of flow is (A) 1 mm s- 1 (B) 0.2 mm s- 1 (C) 0.3 mms- 1 (D) 0.4 mms- 1

Tardigrade Admin · Accepted Answer

For the blood flow in a capillary, Volumetric flow rate = velocity × area of cross-section Q=Av v=(Q/A)=(100 × 1 0- 6/0.25) v=400 × 10- 3 mms- 1=0.4 mms- 1

Q. Blood is flowing at the rate of $100 c m^{3} s^{- 1}$ in a capillary of cross-sectional area $0.25 m^{2}$ . The velocity of flow is

$1 mm s^{- 1}$

$0.2 mm s^{- 1}$

$0.3 mm s^{- 1}$

$0.4 mm s^{- 1}$

For the blood flow in a capillary,
Volumetric flow rate = velocity \times area of cross-section
$Q = A v$
$v = \frac{Q}{A} = \frac{100 \times 1 0 ^{- 6}}{0.25}$
$v = 400 \times 1 0^{- 3} mm s^{- 1} = 0.4 mm s^{- 1}$

Q. Blood is flowing at the rate of 100cm3s−1 in a capillary of cross-sectional area 0.25m2 . The velocity of flow is

1mms−1

0.2mms−1

0.3mms−1

0.4mms−1