There are four lightweight rod samples P, Q, R and S separately suspended by thread. A bar magnet is slowly brought near to each sample and the following observations are noted (a) P is weakly repelled (b) R is strongly attracted (c) S remains unaffected (d) Q is weakly attracted Which of the following is true?

Step-by-step solution

When a bar magnet is brought near a material, the magnetic behavior can be identified by the interaction: Diamagnetic materials are weakly repelled by a magnetic field. Since P is weakly repelled, P is a diamagnetic material. Ferromagnetic materials are strongly attracted by a magnetic field. Since R is strongly attracted, R is a ferromagnetic material. Non-magnetic materials are unaffected by a magnetic field. Since S remains unaffected, S is a non-magnetic material. Paramagnetic materials are weakly attracted by