The Curie temperature of cobalt and iron are 1400 ~K and 1000 ~K respectively. At T=1600 ~K , the ratio of magnetic susceptibility of cobalt to that of iron is

Step-by-step solution

We know that, magnetic susceptibility, aligned & = C T-T_C & 1 T-T_C aligned aligned _ cobalt _ iron & = T- (T_C )_ iron T- (T_C )_ cobalt & = 1600-1000 1600-1400 = 600 200 =3 aligned