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The flow of blood in a large artery of a anesthetized dog is diverted through a venturimeter. The wider part of the meter has a cross-sectional area equal to that of the artery. Ie., `10mm^(2)` . The narrower part has an area `5 mm^(2)`. The pressure drop in the artery is `22 Pa`. Density of the blood pressure drop in the artery is `22Pa`. Density of the blood pressure drop in the artery is `22Pa`. Density of the blood is `1.06xx10^(3)kgm^(-3)`. The speed of the blood in the artery isA. `0.12 ms^(-1)`B. `0.62 ms^(-1)`C. `0.24 ms^(-1)`D. `0.42 ms^(-1)` |
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Answer» Correct Answer - A Here, `A = 10 mm^(2), a= 5mm^(2), rho=1.06 x 10^(2) kg m^(-3)` `=1060 kg m^(-3), P_(1) -P_(2) = 22Pa` Speed of the fluid through the wide neck is `v = sqrt((2(P_(1)-P_(2)))/(rho)) {(A/a)^(2)-1}^(-1//2)` or `A/a = 10/5 = 2` `:. V = sqrt((2xx22)/(1060(2^(2)-1))) = 0.12 ms^(-1)`. |
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