question_answer

There are four light-weight-rod sample A, B, C, D separately suspended by threads. A bar magnet is slowly brought near each sample and the following observations are noted

(i) A is feebly repelled

(ii) B is feebly attracted

(iii) C is strongly attracted

(iv) D remains unaffected

Which one of the following is true?

A)  C is of diamagnetic material

B)  D is of a ferromagnetic material

C)  A is of a non-magnetic material

D)  B is of paramagnetic material