A drop of water of volume V is pressed between the two glass plates so as to spread on area A. If T is the surface tension, the normal force required to separate the glass plates is :

A drop of water of volume V is pressed between the two glass plates so

1.	A drop of water of volume V is pressed between the two glass plates so as to spread on area A. If T is the surface tension, the normal force required to separate the glass plates is :
Answer» <html><body><p></p>Solution :<a href="https://interviewquestions.tuteehub.com/tag/pressure-1164240" style="font-weight:bold;" target="_blank" title="Click to know more about PRESSURE">PRESSURE</a> difference = `T/R=T/(t//2)=(2T)/t`, <a href="https://interviewquestions.tuteehub.com/tag/force-22342" style="font-weight:bold;" target="_blank" title="Click to know more about FORCE">FORCE</a> = `(2T)/<a href="https://interviewquestions.tuteehub.com/tag/ta-659025" style="font-weight:bold;" target="_blank" title="Click to know more about TA">TA</a>` <br/> But V = At or t = `V/A,<a href="https://interviewquestions.tuteehub.com/tag/therefore-706901" style="font-weight:bold;" target="_blank" title="Click to know more about THEREFORE">THEREFORE</a>"Force"=(2TA^(2))/V` <br/> <img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_ELT_AI_PHY_XI_V01_C_C04_SLV_024_S01.png" width="80%"/></body></html>