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NEET PHYSICSEasy

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?

A

C is of a diamagnetic material

B

D is of a ferromagnetic material

C

A is of a non-magnetic material

D

B is of a paramagnetic material

Step-by-Step Solution

  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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Solved: PHYSICS Question for NEET | Sushrut