CBSE Class 11-science Answered
If we place a cotton thread loop on a soap film gently and prick the film within the loop then what shape will the thread loop acquire?
Asked by Topperlearning User | 01 Aug, 2014, 01:32: PM
Expert Answer
The loop of thread acquires a circular shape, because for a given perimeter, a circle has maximum area, and therefore, rest of the soap film will acquire minimum surface area.
Answered by | 01 Aug, 2014, 03:32: PM
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