Question

repulsion is the surest test of magnetism justify the statement with the help of an activity​

Answer 1

Answer:

Attraction can be caused either by opposite poles of magnets or between one pole of magnet and an unmagnetised bar of iron whereas repulsion is possible between the two similar poles of magnets. Hence, repulsion is the surest test of magnetism

Explanation:

Answer 2

Answer:

experiment : to justify that repulsion is the surest test

material ; magnet , magnet 1 and metal

method : 1) take the magnet near metal

2) take magnet's north to magnet 1 's south

3) take magnet's south to magnet 1's south

4) magnet's south to metal

observations: 1) in first two cases you will observe that they attract each other , then how can one determine that which one of them is magnet and which is metal

therefore in next two case case the similar sides are kept together that leads to repulsion in magnet 1 and attraction in metal

conclusion: repulsion is the surest test for magnetism