Question

The S.I unit of viscosity is:

Answer 1

Hint: To answer this question, we first need to understand what the S.I unit is. The contemporary version of the metric system is the International System of Units. It is the only method of measurement recognized by practically every country on the planet. It is made up of a logical system of measurement units that starts with seven basic units.

Complete answer:
Viscosity: A fluid's viscosity is a measurement of its resistance to deformation at a specific rate. It corresponds to the informal sense of "thickness" in liquids: syrup, for example, has a higher viscosity than water. Viscosity can be thought of as a measurement of the internal frictional force that exists between adjacent layers of fluid in motion. When a viscous fluid is driven through a tube, for example, it flows faster towards the tube's axis than near the tube's walls.

Experiments reveal that some stress is required to maintain the flow through the tube in this circumstance. This is due to the fact that a force is necessary to overcome the friction between the fluid layers that are in relative motion.As a result, for a tube with a constant rate of flow, the compensating force's intensity is proportional to the fluid's viscosity.

So, the Newton-second per square meter unit of viscosity is commonly expressed in SI units as pascal-second.

Note: The principle of viscosity is as follows: When a layer of liquid is moved across a surface or another layer of the same liquid, the fluid particles tend to resist the movement; this resisting force is known as viscosity.