Question

If `chi` stands for the magnetic susceptibility of a given material, identify the class of material for which
(i)`-1 ge chi lt 0`
(ii) `0 chi lt in (in "stands for a small positive number")`

Answer 1

`(i)"For "-1 ge x lt 0.` material is diamagnetic
(ii) `"For "0 lt chi lt in`, material is paramagnetic.