Question

Q 2 (A) Explain why “A drop of liquid under no external force is always spherical in shape”.

Answer 1

because it tends to acquire minimum surface area because of the presence of surface tension. The area of sphere is minimum for a given volume. Hence, under no external forces, liquid drop alerts always take spherical shape.

Answer 2

Answer:

Because of surface tension

Explanation:

A liquid tends to have minimum surface area because it has less surface energy. Surface area of a sphere is minimum for a given volume. Hence under no external pressure drop of a liquid always forms a spherical surface.

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