InterviewSolution
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InterviewSolution
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in a plate, a sucrose solution of coefficient of visocity `1.5 xx10^(-3) Nsm^(-2)` is driven at a velocity of `10^(-3) ms ^(-1)` throught x ylem vessel of radius `2mu` m and length`5mu`m. Find the hydrostatic pressure difference across the length of xylem vessel. |
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Answer» Correct Answer - `15 Nm^(-2)` Here, `eta = 1.5 xx10^(-3) N.s m^(-2) , upsilon = 10^(-3) ms^(-1),` `r = 2xx 10^(-6)m, l = 5xx 10^(-6)m` `V = pi r^2 upsilon = (pi p r^4)/(8 eta l)` `or p = (8 eta l upsilon)/(r^2) = 8xx1.5 xx10^(-3)xx(5xx10^(-6)xx10^(-3))/((2xx10^(-6))2)` `= 15 N m^(-2)` |
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