question_answer

If the magnetic dipole moment of an atom of diamagnetic material, paramagnetic material and ferromagnetic material are denoted by\[{{\mu }_{d}}\],\[{{\mu }_{p}}\]and\[{{\mu }_{f}}\]respectively, then

A) \[{{\mu }_{d}}=0\] and \[{{\mu }_{p}}\ne 0\]

B) \[{{\mu }_{d}}\ne 0\] and \[{{\mu }_{p}}=0\]

C) \[{{\mu }_{p}}=0\] and \[{{\mu }_{f}}\ne 0\]

D) \[{{\mu }_{d}}\ne 0\] and \[{{\mu }_{f}}\ne 0\]