A batch settling experiment is performed in a long column using a dilute dispersion containing equal number of particles of type A and type B in water (density 1000 kg m^-3) at room temperature.
Type A are spherical particles of diameter 30 μm and density 1100 kg m^-3.
Type B are spherical particles of diameter 10 μm and density 1900 kg m^-3.
Assuming that Stokes' law is valid throughout the duration of the experiment, the settled bed would