question_answer

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

A)  \[{{M}_{d}}=\,0,\,\,{{M}_{p}}\ne \,\,0\]          

B)  \[{{M}_{p}}=\,0,\,\,{{M}_{f}}\ne \,\,0\]

C)  \[{{M}_{d}}\ne \,\,0,\,\,{{M}_{p}}=\,\,0\]        

D)  \[{{M}_{d}}=\,\,0,\,\,{{M}_{f}}\ne \,\,0\]