You are given three magnetic needles $N_F, N_p$ and $N_D$ made up of ferromagnetic, paramagnetic and diamagnetic materials respectively. If a magnet is brought close to each of the needle one by one, then the magnet will |
attract all three of them equally attract $N_F$ strongly, but repel $N_p$ and $N_D$ weakly attract $N_F$ strongly and $N_p$ weakly but repel $N_D$ weakly attract $N_F$ and $N_p$ strongly but repel $N_D$ strongly |
attract $N_F$ strongly and $N_p$ weakly but repel $N_D$ weakly |
The correct answer is Option (3) → attract $N_F$ strongly and $N_p$ weakly but repel $N_D$ weakly |