Rajasthan BoardEnglish MediumSTD 11 SciencePhysics9.2 , surface tension1 Mark
MCQ
The spherical shape of rain-drop is due to
A
Density of the liquid
✓
Surface tension
C
Atmospheric pressure
D
Gravity
✓
Answer
Correct option: B.
Surface tension
b (b) Because of surface tension, a liquid surface tends to have the minimum area possible. And as for a given volume the surface of a sphere has got the minimum area, the rain drops take a spherical shape.
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