Question:
A drop of water is broken into two drops. The sum of which property of the two drops is equal to that of the single one?
(A) Radius
(B) Surface area
(C) Surface energy
(D) Volume
Correct Answer:
(D) Volume
Explanation:
When a drop of water breaks into two smaller drops, the total volume of the two smaller drops remains the same as the volume of the original drop. This is because volume is a conserved property in a closed system, meaning it doesn't change unless there is an addition or removal of material. So, regardless of how the drop splits, the total amount of water (volume) remains constant.
Therefore, the sum of the volumes of the two smaller drops is equal to the volume of the original drop.
Hence, option "(D) Volume" is correct☑.