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

1. repelled by the north pole and attracted by the south pole
2. attracted by the north pole and repelled by the south pole
3. attracted by both the poles
4. repelled by both the poles

Correct answer: repelled by both the poles

Solution

Diamagnetic substances are repelled by both poles of a magnet because they create an induced magnetic field in the opposite direction to the external magnetic field.

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