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Ayesha put two drops of oil on the lid of her tiffin box. Next to that, she put two drops of water and two drops of sugar solution. She tilted the lid. She saw some drops slid down quickly, while some were left behind. Which drops slid down her tiffin box the fastest?

Ayesha put two drops of oil on the lid of her tiffin box. Next to that, she put two drops of water and two drops of sugar solution. She tilted the lid. She saw some drops slid down quickly, while some were left behind. Which drops slid down her tiffin box the fastest? Correct Answer water

Concept:

  • Viscosity is the property of fluid by virtue of which the fluid becomes thick and stuck due to internal friction.
  • A fluid with a low viscosity is said to be "thin".
  • while a high viscosity fluid is said to be "thick."

Explanation:

  • Water drops will slide down her tiffin box the fastest because it has a low viscosity.
  • Both oil and sugar solution is thicker than water due to high viscosity.
  • So both of them get stuck with the box by making it difficult to slide.

Thus, water drops will slide down her tiffin box the fastest.

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