Question

which of the following represent viscosity​

Answer 1

Answer:

Most of the fluids offer some resistance to motion. This resistance to fluid motion is called viscosity.

Answer 2

Answer:

It is true to say that resistance to fluid motion exists.

Explanation:

• viscosity (dynamic):- Formally, a fluid's viscosity (denoted by the symbol "eta") is defined as the relationship between its shearing stress (F/A) and velocity gradient (vx/y or dvx/dy).
• Viscosity is the fluid's resistance to changing its shape or to the motion of adjacent parts with respect to one another. The fluid's resistance to flowing is determined by its viscosity. Shearing stress to velocity gradient ratios in a fluid are used to determine viscosity.

• Both the Greek letter mu () and the sign "eta" are frequently used to denote viscosity. Additionally, viscosity is frequently referred to as absolute or dynamic viscosity.