The surface tension of a liquid is 0.5 N/m. If a liquid film is formed on a ring of area 0.02 m^2 then its surface energy will be -

The surface tension of a liquid is 0.5 N/m. If a liquid film is formed

1.	The surface tension of a liquid is 0.5 N/m. If a liquid film is formed on a ring of area 0.02 m^2 then its surface energy will be -
Answer» <html><body><p>0.01 Joule<br/>0.02 Joule<br/>0.03 Joule<br/>0.04 Joule</p>Answer :<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a></body></html>