$A$ small bar of diamagnetic substance is placed in a non-uniform magnetic field. In which direction does it move? Explain.

Consider the regular array of vertical identical current-carrying wires (with the direction of current flow as indicated in the figure alongside) protruding through a horizontal table. If we scatter some diamagnetic particles on the table,then they are likely to accumulate:

If a diamagnetic solution is poured into a $U-$ tube and one arm of this $U-$ tube is placed between the poles of a strong magnet with the meniscus in line with the field,then the level of the solution will:

Give some examples:
$(i)$ Ferromagnetic substances.
$(ii)$ Paramagnetic substances.

If a diamagnetic substance is brought near the north or the south pole of a bar magnet,it is

Assertion: $A$ disc-shaped magnet is levitated above a superconducting material that has been cooled by liquid nitrogen.
Reason: Superconductors repel a magnet.