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Needles N1, N2 and N3 are respectively made of ferromagnetic, paramagnetic and diamagnetic materials. If a magnet is brought near them, it will

1. pull N1 and N2 strongly, but push away N3
2. pull N1 strongly, pull N2 weakly, and push away N3 weakly
3. pull N1 strongly, push away N2 and N3 weakly
4. pull all three needles toward it

Correct answer: pull N1 strongly, pull N2 weakly, and push away N3 weakly

Solution

A ferromagnetic needle is attracted strongly, a paramagnetic one is attracted weakly, and a diamagnetic one is repelled weakly. This matches: pull N1 strongly, pull N2 weakly, push away N3 weakly.

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