The surface tension of a liquid is . If a film is held on a ring of area , its total surface energy is about |
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a) |
b) |
c) |
d) |
The surface tension of a liquid is . If a film is held on a ring of area , its total surface energy is about |
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a) |
b) |
c) |
d) |
(c) Surface energy is related to the surface tension by the relation |