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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 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

`7 xx 10^(-3) Nm^(-1)`

B

`7.2 xx 10^(-3) Nm^(-1)`

C

`0.72 Nm^(-1)`

D

`0.072 Nm^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
D
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