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Select and write the most appropriate answer from the given alternative for each sub-question :
A rectangular film of a liquid is 5 cm long and 4 cm wide. If the work done in increasing its ara to `7 cm xx 5 cm` is 0.06 J, the surface tension of the solution is :

A

`0.02 J//m^(2)`

B

`0.2 J//m^(2)`

C

`2 J//m^(2)`

D

`20 J//m^(2)`

Text Solution

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The correct Answer is:
D
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GURUKUL PUBLICATION - MAHARASHTRA PREVIOUS YEAR PAPERS- JULY 2018-SECTION-II
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