The magnetic susceptibility ( ) of three materials A , B , and C shows the following dependence on absolute temperature ( T ): Material A : is small, negative, and independent of temperature. Material B : is small, positive, and inversely proportional to temperature ( 1 T ). Material C : is very large and positive, but above a certain critical temperature, its behaviour changes to that of material B . Identify the ty

Step-by-step solution

Material A has a small negative susceptibility that is independent of temperature. This is the characteristic property of diamagnetic materials. Material B has a small positive susceptibility that follows Curie's law ( 1 T ). This is characteristic of paramagnetic materials. Material C has a very large positive susceptibility, which is a property of ferromagnetic materials. Above the Curie temperature, a ferromagnetic material transitions into a paramagnetic material (like material B ). Therefore, the correct seque