Magnetism and Matter - Result Question 13

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

[2011]

(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) $B$ is of a paramagnetic material

(b) $C$ is of a diamagnetic material

(c) D is of a ferromagnetic material

(d) A is of a non-magnetic material

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Answer:

Correct Answer: 17. (a)

Solution:

  1. (a) $A \to$ diamagnetic

$B \to$ paramagnetic

$C \to$ Ferromagnetic

$D \to$ Non magnetic