Question
The figure below shows a wire loop with a string that has been dipped into soap solution.
i) Sketch a similar diagram to show the observed effect if the soap film is punctured at X
ii) Explain the observations made in (i) above
ii) Explain the observations made in (i) above
Answer
i)
ii) When side x of the film is broken, surface tension acts only on one side Y of the film surface tension of the film tends to make the surface area to be minimum hence it pulls the string to make a smooth curve
ii) When side x of the film is broken, surface tension acts only on one side Y of the film surface tension of the film tends to make the surface area to be minimum hence it pulls the string to make a smooth curve
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