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?

Options

A. B is of a paramagnetic material
B. C is a diamagnetic material
C. D is of a ferromagnetic material
D. A is of a non magnetic material

Answer

C

Explanation

Diamagnetic materials are feebly repelled by paramagnetic materials are feebly attracted by the magnet ferromagnetic materials are strongly attracted by bar magnet and non-magnetic materials unaffected by bar magnet.
A - Diamagnetic , B- Paramagnetic, C- Ferromagnetic , D- Non magnetic