Question Detail
Question
A cup is filled to the brim with water and contains a floating ice cube. When the ice completely melts, what happens to the water level?
Correct Answer
Option D is the correct answer.
Detailed Explanation
A floating ice cube displaces water equal to its weight. When it melts, it occupies exactly the same volume as the displaced water, so the level remains unchanged.
Hint
Use Archimedes’ principle.