If a diamagnetic substance is brought near the north or the south pole of a bar magnet, it is

If a diamagnetic substance is brought near the north or the south pole of a bar magnet, it is
  1. repelled by both the poles
  2. repelled by the north pole and attracted by the south pole
  3. attracted by the north pole and repelled by the south pole
  4. attracted by both the poles

Solution

Diamagnetic substance are weekly magnetised in a direction opposite to that of applied magnetic field. These are repelled in an external magnetic field ie, have a tendency to move from high to low field region.

Asked in: NEET 2009 (Screening)

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