Question

__________ is/are the surest test(s) for magnetism.

• A. Attraction
• B. Repulsion
• C. Both attraction and repulsion
• D. None of these

Answer 1

The correct option is C

Both attraction and repulsion

Attraction can occur in the case of two magnets (with opposite poles brought together) as well as between a magnet and ferrous objects such as iron. Therefore if both the pieces attract each other, they may be magnets or one may be the magnet and other may be a ferrous material. Whereas, repulsion is possible only in the case of two magnets (with same poles brought together). Therefore repulsion is a true test for magnetism.