Question

What is the value of one poise?

Answer 1

Hint:Poise is the CGS unit of viscosity.
The unit conversion of gram to kilogram is done by dividing it with one by thousand term.
$\text{1gram=}{\displaystyle \frac{\text{1}}{\text{1000}}}\text{kg}$

Complete step-by-step answer:So in the question we are asked to say one poise is equal to which unit given in the options.
The question is related to unit of a parameter.
We have studied about liquid state and while dealing with liquids we have studied about a force which acts on the flow of the liquid which is the viscosity parameter.
We could describe viscosity as the resistant force acting against the flow of a fluid. The fluid consists of many layers and the frictional force i.e. the force that prevents the flow of fluid developing between the layers of the fluid flowing through a tube is called viscosity. A fluid which does not possess the frictional force or viscous force is called an inviscid or ideal liquid which is not practically possible, these types of fluids are only theoretically possible.
The given unit Poise is the CGS unit for viscosity. The CGS system is the centimeter-gram-second system in which the length is measured in centimeters, weight in gram and time in seconds.
The unit poise (P) is equivalent to dyne-second per centimeter. Poise can be explained as the tangential force of 1 dyne per square centimeter to maintain the velocity difference of about 1centimeter per second. Poise is generally measured in$\text{gc}{\text{m}}^{\text{-1}}\text{se}{\text{c}}^{\text{-1}}$.
-$\text{1}\text{poise=1dyne sec c}{\text{m}}^{\text{-2}}$
- $\text{1}\text{poise=1gc}{\text{m}}^{\text{-1}}{\sec }^{-1}$
-$\text{1gram=}{\displaystyle \frac{\text{1}}{\text{1000}}}\text{kg}$
-1 meter =100 cm
-1 poise =100 centipoise
And,$\text{1}\text{poise=1gc}{\text{m}}^{\text{-1}}\text{se}{\text{c}}^{\text{-1}}\text{=0}\text{.1kg}{\text{m}}^{\text{-1}}\text{se}{\text{c}}^{\text{-1}}$

Note:The name Poise for the unit is given after the French physicists, Jean Louis Marie Poiseuille.
The SI unit for viscosity is Pascal seconds (Ps) or$\text{kg}{\text{m}}^{\text{-1}}{\text{s}}^{\text{-1}}$
The CGS unit for Kinematic viscosity is Stockes (St).