KCET2018PhysicsMagnetic Properties of Matter
Needles ( N₁, N₂ ) and ( N₃ ) are made of a ferromagnetic, a paramagnetic and a diamagnetic substance respectively. A magnet when brought close to them will
Options
- AAttract all three of them
- BAttract ( N₁ ) strongly, ( N₂ ) weakly and repel ( N₃ ) weakly
- CAttract ( N₁ ) strongly but repel ( N₂ ) and ( N₃ ) weakly
- DAttract ( N₁ ) and ( N₂ ) strongly but ( N₂ ) repel ( N₃ )
Correct answer
B. Attract ( N₁ ) strongly, ( N₂ ) weakly and repel ( N₃ ) weakly
Step-by-step solution
Given, ( N₁ ) is ferromagnetic, ( N₂ ) is paramagnetic; ( N₃ ) is diamagnetic. Therefore, ( N₁ ) is attracted strongly by magnet. ( N₂ ) is attracted weakly by magnet. ( N₂ ) is weakly repelled by magnet.