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TNPSC Group-I 2021 · Question 140 of 148

Water drops in space are spherical because in the absence/reduced effects of gravity, the forces governing the objects are all the same and therefore the drop

Physics - Surface Tension

  1. Aattains a shape having the least amount of surface areaCorrect
  2. Battains a shape having the maximum amount of surface area
  3. Cattains a shape having the least volume
  4. Dattains a shape having the maximum volume

Answer: A. attains a shape having the least amount of surface area

Explanation

In the absence of gravity, surface tension pulls water into the shape with the least surface area - a sphere.

Source: TNPSC Group-I Prelims (held 3 Jan 2021) - official paper via examrace.com

← Q139View full paper (148 questions)Q141 →

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