Question

magnetic suspectibility of platinum is 0.0001 it's relative permeability is

Answer 1

Relation between relative permeability( $\bold{\mu_r}$)and magnetic suspectibility(χ) is $\bold{\mu_r}$ = 1 + χ

Here, suspectibility of platinum, χ is 0.001
so, relative permeability of platinum ,$\bold{\mu_r}$ is (1 + 0.001) = 1.001

Hence, relative permeability of platinum is 1.0001