Explain Poiseuille's formula for the volume of liquid flowing through a capillary tube - Describe an experiment to determine the coefficient of viscosity of a liquid by Poiseuiles formula.

The rate of flow of liquid through a capillary tube in an experiment to determine the viscosity of the liquid increases

The velocity of liquid flowing through a tube at certain distance from the axis of tube

Define coeffiecient of viscosity of a liquid. Write down its dimensional formula and MKS unit.

Describe the method of determination of surface tension of a liquid by capillary rise. Derive the formula used.

The volume of a liquid (V) flowing per second through a cylindrical tube depends upon the pressure gradient (p//l ) radius of the tube (r) coefficient of viscosity (eta) of the liquid by dimensional method the correct formula is

In dimension of critical velocity v_(c) liquid following through a take are expressed as (eta^(x) rho^(y) r^(z)) where eta, rhoand r are the coefficient of viscosity of liquid, density of liquid and radius of the tube respectively then the value of x,y and z are given by

The rate of a flow V a of liquid through a capillary under a constant pressure depends upon (i) the pressure gradient (P/l) (ii) coefficient of viscosity of the liquid eta (iii) the radius of the capillary tube r. Show dimesionally that the rate of volume of liquid flowing per sec V∝ Pr^4 /ηl

Explain the working of a venturimeter, Obtain an expression for the volume of liquid flowing per second through pipe.

An incompressible liquid flows through a horizontal tube as shown in the figure. Then the velocity 'v' of the fluid is:

The velocity of liquid (v) in steady flow at a location through cylindrical pipe is given by v=v_(0)(1-(r^(2))/(R^(2))) , where r is the radial distance of that location from the axis of the pipe and R is the inner radius of pipe. If R = 10 cm. volume rate of flow through the pipe is pi//2 xx 10^(-2) m^3s^(-1) and the coefficient of viscosity of the liquid is 0.75 N s m^(-2) , find the magnitude of the viscous force per unit area, in N m^(-2) at r = 4 cm.