A film of water is formed between two straight parallel wires each 10 cm long and at separation 5 mm. To increase the distance between them to 6 mm, the work done is 144 xx10^(-7)J. The surface tension of water is

A film of water is formed between two straight parallel wires each 10

1.	A film of water is formed between two straight parallel wires each 10 cm long and at separation 5 mm. To increase the distance between them to 6 mm, the work done is 144 xx10^(-7)J. The surface tension of water is
Answer» `7 xx 10^(-3) NM^(-1)` `7.2 xx 10^(-3)Nm^(-1)` `0.72Nm^(-1)` `0.072Nm^(-1)` Answer :D