A thin wire ring of 3 cm radius float on the surface of liquid. The pull required to raise the ring before the film breaks is `30.14xx10^(3)N` more than its weight. The surface tension of the liquid (in `Nm^(-1))` isA. `80 xx 10^(-3)`B. `87 xx 10^(-3)`C. `90 xx 10^(-3)`D. `98 xx 10^(-3)`

A thin wire ring of 3 cm radius float on the surface of liquid. The pu

1.	A thin wire ring of 3 cm radius float on the surface of liquid. The pull required to raise the ring before the film breaks is `30.14xx10^(3)N` more than its weight. The surface tension of the liquid (in `Nm^(-1))` isA. `80 xx 10^(-3)`B. `87 xx 10^(-3)`C. `90 xx 10^(-3)`D. `98 xx 10^(-3)`
Answer» Correct Answer - A `T=(F)/(4pir)`

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A thin wire ring of 3 cm radius float on the surface of liquid. The pull required to raise the ring before the film breaks is `30.14xx10^(3)N` more than its weight. The surface tension of the liquid (in `Nm^(-1))` isA. `80 xx 10^(-3)`B. `87 xx 10^(-3)`C. `90 xx 10^(-3)`D. `98 xx 10^(-3)`

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