The Ostwald viscometer is used for the measurement of the viscosity of a Newtonian fluid. It works on the principle of measuring the time it takes for a fluid to flow through a narrow tube under the influence of gravity.
Shear stress (\( \sigma \)) and shear viscosity (\( \eta \)) are plotted as functions of the shear rate (\( \dot{\gamma} \)) for idealized "solid-like with yielding (1)" and "liquid-like (2)" materials.

Associate the shear stress and viscosity plots with the appropriate material responses.