Question

the surface tension of a liquid is 0.4N/m liquid film is formed on a ring of area 0.03 m square.then its surface area will be
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Answer 1

The surface area is 0.03 m²

Explanation:

• The surface tension is the ability of the liquid to shirk to its minimum possible area. This ability of the water makes the insect to walk or stand on water.
• The surface tension is force acting per unit length or energy acting per unit area.
• In the given question, the liquid film is formed on the ring area of 0.03 m², thus, the ring area is surface area.