alleryWhether a liquid spreads or forms droplets is decided by the:
AWeight of droplet
BColour of solid
CAngle of contact
DVolume of liquid
Answer & Solution
Correct answer: C. Angle of contact
1. The angle of contact differs for each pair of liquid and solid.
2. A small angle lets the liquid spread over the solid.
3. A large one makes it gather into droplets instead.
_Source: syllabus Physics Part II, Chapter 10, Mechanical Properties of Fluids._
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