Question

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

• A. repelled by north pole and attracted by south pole
• B. attracted by north pole and repelled by south pole
• C. repelled by both the poles
• D. attracted by both the poles

Answer 1

The correct option is C

repelled by both the poles

Diamagnetic materials get magnetised in a direction opposite to the magnetic field. Diamagnetic substances are those which have a tendency to move from stronger part to the weaker part of the external magnetic field. If we place this substance in a non-uniform magnetic field, it tends to move from the point of high field to that of low field. Hence, diamagnetic substances get repelled by a magnet i.e. by both the poles.