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

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

`7.22 xx 10^(-6) J`

B

` 1.44 xx 10^(-5) J`

C

`2 .88xx 10^(-5) J`

D

`5.76 xx 10^(-5) J`

Text Solution

Verified by Experts

The correct Answer is:
B
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