Question

The rain drops are in spherical shape due to

• A. surface tension in drop
• B. gravitational force on drop
• C. air resistance on drop
• D. thrust on drop

Answer 1

The correct option is A surface tension in drop

Surface tension is due to cohesive force between water molecules.


This surface tension has a tendency to minimize the surface area by contracting surfaces by applying cohesive force. Thus, water tries to occupy smaller areas. Smallest possible area is in the shape of a sphere for a given volume. Therefore, rain drops are in spherical shape.