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JAMB Physics 1992 Question 18

Question 18

Density and Upthrust

A block of ice floats on water inside a container. If the block of ice gets completely melted, the level of water in the container will

  1. A.increase
  2. B.remain the same
  3. C.decrease
  4. D.first decrease and then increase
Show the answer and explanation

Answer: B (remain the same)

Explanation

Floating ice displaces its own weight of water. When it melts it becomes exactly that much water, which fills the space it displaced, so the level does not change.