My question is, one of them is iron and the other is a magnet. It is forbidden to break. However, it is desired to determine the magnet without using any other objects. How can I find , which is iron or magnet?
I learned that the following method is wrong.
1) To bring the $ S-$pole of the magnet on the left to the $S-$pole of the right magnet.
2) Then bring the $ S-$pole of the magnet on the left to the $N-$pole of the right-hand magnet.
If both are attractive, then it is iron on the left.
Is my method correct?