A film of water is formed between two st...

A film of water is formed between two straight parallel wires each `10 cm` long and at a seperation of `0.5 cm`. Calculate the work required to increase `1mm` distance between the wires. Surface tension of water `=72xx10^(-3)N//m`.

`36 "erg"`

`288 "erg"`

`144 "erg"`

`72"erg"`

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A film of water is formed between two straight paralel wires each 10 cm long and at seperation 0.5 cm . Calculate the work requied to increase 1mm distance between the wires. Surface tension of water =72xx10^(-3)N//m .

A film of water is formed between two straight parallel wires each 10 cm long and at a separatin 0.5 cm . Calculate the work required to increase 1 mm distance between wires. Surface tension = 72 xx 10^(-3) N//m .

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