A film of water is formed between two straight parallel wires of length 10cm each separated by 0.5 cm. If their separation is increased by 1 mm while still maintaining their parallelism how much work will have to be done of water. Surface tension of water = 72 xx10^(-2)Nm^(-1)

A film of water is formed between two straight parallel wires of lengt

1.	A film of water is formed between two straight parallel wires of length 10cm each separated by 0.5 cm. If their separation is increased by 1 mm while still maintaining their parallelism how much work will have to be done of water. Surface tension of water = 72 xx10^(-2)Nm^(-1)
Answer» `7.22 xx 10^(-6) J` ` 1.44 xx 10^(-5) J` `2 .88xx 10^(-5) J` `5.76 xx 10^(-5) J` Answer :B