Question

You have been given 3 beakers. Pour some iron filings in each and pour cold water first and very hot water in the second and no water in third.

Answer 1

Answer:

Explanation:

the strength of the magnet decreases on heating.so the magnet in the hot water will be weakest.the magnet kept in cold water will be slightly stronger than the magnet kept without water . so, the cold magnet will attract the maximum number of iron fillings.