There are four light-weight-rod samples A, B, C, D separately suspended by threads. A bar magnet is slowly bro

Question

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:
(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?

Accepted Answer

1. **Diamagnetic Materials:** These substances are feebly repelled by a magnet. They tend to move from stronger to weaker parts of a magnetic field . Observation (i) corresponds to A being Diamagnetic.
2. **Paramagnetic Materials:** These substances are feebly attracted by a magnet. They tend to move from weaker to stronger parts of a magnetic field . Observation (ii) corresponds to B being Paramagnetic.
3. **Ferromagnetic Materials:** These substances are strongly attracted by a magnet . Observation (iii) corresponds to C being Ferromagnetic.
4. **Non-magnetic Materials:** These are unaffected by magnetic fields. Observation (iv) corresponds to D being Non-magnetic.
5. **Conclusion:** 
   - Statement 1 (C is diamagnetic) is False (C is ferromagnetic).
   - Statement 2 (D is ferromagnetic) is False (D is non-magnetic).
   - Statement 3 (A is non-magnetic) is False (A is diamagnetic).
   - Statement 4 (B is paramagnetic) is True.

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