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Figure shows a soap film formed between two square figures made of a uniform wire. The bigger square is held while keeping it in a horizontal plane and the smaller square is slowly allowed to droip vertically. It reaches an equilibrium state after dropping a height h. Let surface tension of soap =T. Mass per unit length of wire =lamda. Acceleration due to gravity =g Given that h=(nlamdaga)/(2sqrt(4T^(2)-lamda^(2)g^(2))), find the integer value n. |
| Answer» <html><body><p><br/></p>Solution :`<a href="https://interviewquestions.tuteehub.com/tag/tantheta-3098264" style="font-weight:bold;" target="_blank" title="Click to know more about TANTHETA">TANTHETA</a>=(<a href="https://interviewquestions.tuteehub.com/tag/3a-310574" style="font-weight:bold;" target="_blank" title="Click to know more about 3A">3A</a>)/(2h)` <br/> `2xx4aTxxcostheta=4alamdag` <br/> `costheta=(lamdag)/(2T)` <br/> `impliesh=(3lamda <a href="https://interviewquestions.tuteehub.com/tag/ga-467684" style="font-weight:bold;" target="_blank" title="Click to know more about GA">GA</a>)/(2sqrt(4T^(2)-<a href="https://interviewquestions.tuteehub.com/tag/lamda-536483" style="font-weight:bold;" target="_blank" title="Click to know more about LAMDA">LAMDA</a>^(2)g^(2)))` <br/> <img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/FIT_JEE_FT3_P2_E01_340_S01.png" width="80%"/></body></html> | |