Needles $\mathrm{N}_1, \mathrm{~N}_2$ and $\mathrm{N}_3$ are made of a ferromagnetic, a paramagnetic and a…

Needles $\mathrm{N}_1, \mathrm{~N}_2$ and $\mathrm{N}_3$ are made of a ferromagnetic, a paramagnetic and a diamagnetic substance respectively. A magnet when brought close to them will
  1. attract all three of them
  2. attract $\mathrm{N}_1$ and $\mathrm{N}_2$ strongly but repel $\mathrm{N}_3$
  3. attract $\mathrm{N}_1$ strongly, $\mathrm{N}_2$ weakly and repel $\mathrm{N}_3$ weakly
  4. attract $\mathrm{N}_1$ strongly, but repel $\mathrm{N}_2$ and $\mathrm{N}_3$ weakly

Solution

attracts $\mathrm{N}_1$ strongly, $\mathrm{N}_2$ weakly and Repel $\mathrm{N}_3$ weakly

Asked in: JEE Main 2006

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