The weight of liquid column in a capillary tube is 11xx10^(-4)N. If the radius of tube is 7 mm, calculate the surface tension of liquid.

The weight of liquid column in a capillary tube is 11xx10^(-4)N. If th

1.	The weight of liquid column in a capillary tube is 11xx10^(-4)N. If the radius of tube is 7 mm, calculate the surface tension of liquid.
Answer» <html><body><p></p>Solution :Weight of liquid column `W=11xx10^(-4)N` <br/> Radius of <a href="https://interviewquestions.tuteehub.com/tag/capillary-908628" style="font-weight:bold;" target="_blank" title="Click to know more about CAPILLARY">CAPILLARY</a> <a href="https://interviewquestions.tuteehub.com/tag/tube-1428592" style="font-weight:bold;" target="_blank" title="Click to know more about TUBE">TUBE</a> `r=7mm=7xx10^(-3)m` <br/> Weight of liquid column `W=2pirS` <br/> Surface tension <br/> `S=(W)/(2pir)=(11xx10^(-4))/(2xx(<a href="https://interviewquestions.tuteehub.com/tag/22-294057" style="font-weight:bold;" target="_blank" title="Click to know more about 22">22</a>)/(<a href="https://interviewquestions.tuteehub.com/tag/7-332378" style="font-weight:bold;" target="_blank" title="Click to know more about 7">7</a>)xx7xx10^(-3))impliesS=0.025N//m`</body></html>