CBSE Class 12 · 2005 · All India · Magnetic Properties of MatterShort Answer

Diamagnetic materials are feebly repelled by a magnet and move from stronger to weaker field regions; their susceptibility $\chi$ is small and negative.
Paramagnetic materials are feebly attracted by a magnet and move from weaker to stronger field regions; their susceptibility $\chi$ is small and positive.
Equivalently, inside a field the number of field lines is reduced for a diamagnetic (relative permeability $<1$) and increased for a paramagnetic (relative permeability $>1$).