The surface tension of a thin liquid fil...

The surface tension of a thin liquid film formed between a U shaped wire and a light slider of length 30 cm supporing a weight of `1.5xx10^(-2)N` is

`0.0125Nn^(-1)`

`0.1Nm^(-1)`

`0.05 Nm^(-1)`

`0.025Nm^(-1)`

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