Sir i can't even express how grateful i am for this surface tension series, like this video had exactly all the points i was confused in, all my doubts, everything cleared!! I spent hours thinking on them and wrote all my problems on a sheet with examples thinking i would ask my coaching sir and when i tried to ask he said leave it its my doubt too I was so disappointed but now im literally so happy
Try the RESOLVED series next video given at the end of the video and comment your integer answer here below👇 Also visit the surface tension series playlist here to clarify your doubts 👇 th-cam.com/play/PLtzNDt-x8_02O5K_5QwtMLJhCVPTuwiwM.html Here's the RESOLVED series playlist 👇 th-cam.com/play/PLtzNDt-x8_00MMJNOziEtx7ztBgfI48Lo.html EDIT: My explanation to one of the doubts in comments below about surface tension at liq-solid interface using force analysis It is basically at JEE level understood by using surface energy analysis . Force analysis is difficult. Interfacial tension at any pair of surfaces , even solid-gas also, is originated due to unequal existence of cohesive force felt by surface molecules of one Phase of matter . For a fundamental understanding of why the force is drawn parallel to surface , you may read this 👇 www.utwente.nl/en/tnw/pcf/education/j.m.burgerscentrum_research_school_for_fluid_mechanics/Articles/jacco_snoeijer/SnoeijerAJP_preprint.pdf YOU MAY ALSO FIND THE ACTUAL COMMENT WHICH WAS PINNED
It is basically at JEE level understood by using surface energy analysis . Force analysis is difficult. Interfacial tension at any pair of surfaces , even solid-gas also, is originated due to unequal existence of cohesive force felt by surface molecules of one Phase of matter . For a fundamental understanding of why the force is drawn parallel to surface , you may read this 👇 www.utwente.nl/en/tnw/pcf/education/j.m.burgerscentrum_research_school_for_fluid_mechanics/Articles/jacco_snoeijer/SnoeijerAJP_preprint.pdf
Thank you sir, I was having a lot of conceptual doubts related to surface tension and after watching all your videos on this topic, I'm stunned to see the amount of clarity you have!!!! Brilliant sir🙏🙏 and thank you again ☺️
Sir suppose instead of straight capillary tube we consider frustum type tube open at both ends then FBD of liquid in slanted surface, contact angle will be the angle between tangent at the surface to slanted capillary surface. Am i right? Radius of curvature diagram is messed up. Help 🙏
thanks a lot sir!!!!!!correctly it is named as it totally resolves few conceptual mistakes ....thanks again sir as i have some doubt regarding capilaries ......now this helps a lot thanks sir..........waiting for more beautiful explanations
Sir, at 6:35, you have written the equation by balancing forces of surface tension on a dl element, in the horizontal direction. That is fine. But could you also explain how forces on the dl element would be balanced in the vertical direction as well (as i see an issue there)?
You may watch the explanation for vertical balance in my other surface tension video here👇🏼 th-cam.com/video/kyZBfOI1cVs/w-d-xo.html Or you may go through the pdf of a published paper I shared in the pinned comment
@@PHYSICSSIRJEE www.utwente.nl/en/tnw/pcf/education/j.m.burgerscentrum_research_school_for_fluid_mechanics/Articles/jacco_snoeijer/SnoeijerAJP_preprint.pdf sir, i found this link, but it ain't working. shows some 404 error.
Great video sir.also the 2020 question as well. Sir my question was that can why do we consider tsg because we say that surface tension is a property of liquids
this was the the the best video on surface tension i have ever watched cleared many many doubt sir thank u so much, sir i have a very small doubt as we learn in surface tension that the angle of contact for a given interface is a constant property sir but again we tend to say the when a capillary tube of insufficient length is used the angle of contact changes then what exactly are the angle of contacts tabulated for a given surface mentioned in many jee oriented books
Does Finding height of capillary rise by excess pressure method and by macroscopic fbd are same way . I have one more doubt regarding why application of surface tension is along tangent to surface while appearing downward force?
All of this is covered in detail in our course or by any teacher under whom you would be studying. It's difficult to answer your second doubt in a reply/comment here. In case, you cannot join our course or don't have guidance from an equivalent teacher in your preparation, I recommend you to read 'Properties of matter by D S Mathur' on this topic... Your doubt will get resolved with proper diagrams... All the best with your studies 🙂👍
In vacuum , liquid will vapourize quickly to create a gas layer for itself. If you neglect the vapourizing effect then vacuum does a greater job than Tlg . The creation of Tlg is basically due to difference in molecular forces
There is no separate series as such🙂. I keep bringing everything associated with JEE and Olympiads. Perception of Difficulty varies from student to student. Please stay tuned 🙏☺️, I am sure you will find what you require. In the meantime , you may go through , playlists in the description below this video , "Olympiad workout series" might satiate your need for challenging Problems.
Don't worry , I have seen enough people not understand this and cram it because most textbooks don't do justice to this derivation. They either skip it (JEE books) or make it too mathematical (engineering books)
Sir i can't even express how grateful i am for this surface tension series, like this video had exactly all the points i was confused in, all my doubts, everything cleared!! I spent hours thinking on them and wrote all my problems on a sheet with examples thinking i would ask my coaching sir and when i tried to ask he said leave it its my doubt too
I was so disappointed but now im literally so happy
Sir please continue this series and don't end it it will be our responsibility to spread word for this channel 🙏🙏🙏🙏🙏✍️✍️✍️✍️
Thank you sirji 😊❤. Sir I am glad that I found your channel, I will always support you 🙃
Try the RESOLVED series next video given at the end of the video and comment your integer answer here below👇
Also visit the surface tension series playlist here to clarify your doubts 👇
th-cam.com/play/PLtzNDt-x8_02O5K_5QwtMLJhCVPTuwiwM.html
Here's the RESOLVED series playlist 👇
th-cam.com/play/PLtzNDt-x8_00MMJNOziEtx7ztBgfI48Lo.html
EDIT:
My explanation to one of the doubts in comments below about surface tension at liq-solid interface using force analysis
It is basically at JEE level understood by using surface energy analysis . Force analysis is difficult.
Interfacial tension at any pair of surfaces , even solid-gas also, is originated due to unequal existence of cohesive force felt by surface molecules of one Phase of matter . For a fundamental understanding of why the force is drawn parallel to surface , you may read this 👇
www.utwente.nl/en/tnw/pcf/education/j.m.burgerscentrum_research_school_for_fluid_mechanics/Articles/jacco_snoeijer/SnoeijerAJP_preprint.pdf
YOU MAY ALSO FIND THE ACTUAL COMMENT WHICH WAS PINNED
Woah exactly what was bugging me for two whole days! Thanks a lot sir
Why don't books discuss such vital fundamentals😢
Pure gold content ! Thank you sir !
Thank you soo much sir. I got to learn a lot of things from this video 🙌🙌
Thank you so much sir
I will be grateful to you sirji...
* sir JEE
Thanks ❤️
Such a beautifull concept❤️🙏
This question appeared in GTAs! Loved it!💙👌
Loved it so much
Thanks a lot Sirjee😊
Thanks sir for very indepth explanation
🔥🔥🔥🔥🔥🔥
Loved it❤️
Sir I have a very basic doubt, how would you explain surface tension at solid-gas interface and its interaction with the liquid free surface.
It is basically at JEE level understood by using surface energy analysis . Force analysis is difficult.
Interfacial tension at any pair of surfaces , even solid-gas also, is originated due to unequal existence of cohesive force felt by surface molecules of one Phase of matter . For a fundamental understanding of why the force is drawn parallel to surface , you may read this 👇
www.utwente.nl/en/tnw/pcf/education/j.m.burgerscentrum_research_school_for_fluid_mechanics/Articles/jacco_snoeijer/SnoeijerAJP_preprint.pdf
@@PHYSICSSIRJEE Thank you so much sir for the quick reply. God bless this channel
@@PHYSICSSIRJEE it took me so long to find this comment.
@@korigamik I pinned the doubt comment for others . Thanks for pointing out 🙂
@@PHYSICSSIRJEE sir the link is not working
Thank ❤😊🌹🌹🌹 you for awesome concept s and knowledge
Good one sir.
Sir, Thank you so much 🙏😃
You've cleared so many of my doubts
Thank you sir, I was having a lot of conceptual doubts related to surface tension and after watching all your videos on this topic, I'm stunned to see the amount of clarity you have!!!!
Brilliant sir🙏🙏 and thank you again ☺️
Thank you ☺️, keep watching 👍
thank you sir .. nice explanation :)❤❤💚
revised
thank you sir
Sir , in this problem at time stamp 5:34, is the all three surface tension T(lg), T(ls), T (sg) act on liquid, I mean how T(sg) acts on liquid
That element is three phase matter element and not just liquid
@@PHYSICSSIRJEE sir,
what is meaning of 3 phase matter element here.
Sir please bringing these😇😇😇😇😊😊😊
Nice problem sir
Pls upload next video of optics problem related to asked in 2020 JEE ADV.
🔥🔥🔥🔥🔥🔥🔥😁
physics is very beautiful
Sir suppose instead of straight capillary tube we consider frustum type tube open at both ends then FBD of liquid in slanted surface, contact angle will be the angle between tangent at the surface to slanted capillary surface. Am i right? Radius of curvature diagram is messed up. Help 🙏
thanks a lot sir!!!!!!correctly it is named as it totally resolves few conceptual mistakes ....thanks again sir as i have some doubt regarding capilaries ......now this helps a lot thanks sir..........waiting for more beautiful explanations
Thank you 👍. Please kindly share it in your students groups (telegram and whatsapp) and help me reach more students 🙏
@@PHYSICSSIRJEE sure sir.......
Sir is the answer at 14:12 is "8" ?
Sir, at 6:35, you have written the equation by balancing forces of surface tension on a dl element, in the horizontal direction. That is fine.
But could you also explain how forces on the dl element would be balanced in the vertical direction as well (as i see an issue there)?
You may watch the explanation for vertical balance in my other surface tension video here👇🏼
th-cam.com/video/kyZBfOI1cVs/w-d-xo.html
Or you may go through the pdf of a published paper I shared in the pinned comment
@@PHYSICSSIRJEE www.utwente.nl/en/tnw/pcf/education/j.m.burgerscentrum_research_school_for_fluid_mechanics/Articles/jacco_snoeijer/SnoeijerAJP_preprint.pdf
sir, i found this link, but it ain't working. shows some 404 error.
😎😍
Great video sir.also the 2020 question as well. Sir my question was that can why do we consider tsg because we say that surface tension is a property of liquids
Surface tension is a property of two different materials in contact. Liquid is one of the possibility
@@PHYSICSSIRJEE sir thank you for resolving the doubt.
Sorry sir I had one more query that the Newton’s third law acts on a pair but here we talked about the same liquid
sir, ans is x=8...? for int type...
this was the the the best video on surface tension i have ever watched cleared many many doubt sir thank u so much,
sir i have a very small doubt as we learn in surface tension that the angle of contact for a given interface is a constant property sir but again we tend to say the when a capillary tube of insufficient length is used the angle of contact changes then what exactly are the angle of contacts tabulated for a given surface mentioned in many jee oriented books
For insufficient tube , solid is not on both sides. Watch my explanation for JEE advanced 2019 Problem
@@PHYSICSSIRJEE sir i didnt get you what do you mean by solid on both sides
@@ponnapu watch the video . To the small dl element solid is on liquid side but not on gas side in insufficient length case
Sir, one doubt. Is the component T(LG)sin(theta)=horizontal component of pressure force?
🙏🔥
14:25 Is the answer comming out to be x= 8 ?
Ncert exemplar chapter 1 electrostatic question 1.26
Please help with this one sir🙏🙏🙏
ncert.nic.in/pdf/publication/exemplarproblem/classXII/physics/leep101.pdf
Link to the text
@@tanveersharma2793 I will look into it. Looks interesting 😉
PHYSICS SIR JEE - JANARDHAN - IIT JEE and Olympiad yes sir i think why no one recommends this book it has amazing problems upto olympiad level 😅
@@tanveersharma2793 I do it for my students here. It's compulsory. Btw , ncert has provided Solutions to it too, did you not understand it?
For majority of doubts i do understandthem but this one I wanted clarity of your level 🔥
Sir wt is the ans for the ques (one before irodov problem)
sir, one small doubt .when we take theta 0 because many of the irodov surface tension problem take theta is 0 degree
"Wetting is complete" means theta is zero
Does Finding height of capillary rise by excess pressure method and by macroscopic fbd are same way .
I have one more doubt regarding why application of surface tension is along tangent to surface while appearing downward force?
All of this is covered in detail in our course or by any teacher under whom you would be studying.
It's difficult to answer your second doubt in a reply/comment here.
In case, you cannot join our course or don't have guidance from an equivalent teacher in your preparation, I recommend you to read 'Properties of matter by D S Mathur' on this topic... Your doubt will get resolved with proper diagrams... All the best with your studies 🙂👍
Sir any suggestions where I can get these in the form of theories . Since there are lot of concepts which needs to be covered deeply .
sir only one doubt is remained that why are we not taking cohesive forces due to bulk of liquid on surface molecules
Sir how small dl element is in equilibrium , under these 3 force ?
Sir ,can u take stretching soap bubble problem from irodov?
Sir have you posted the solution to the irodov problem given at end of aits select 15 the cyclotron one?????
Not yet
Sir, which book would you suggest to study surface tension in detail for IIT JEE and Physics Olympiad?
For JEE level theory for teachers, I would suggest " properties of matter " by D S Mathur
@@PHYSICSSIRJEE Thank you very much for your prompt reply, sir.
What happened when this setup is placed in vacuum???? As here significant role of Gas is observed
In vacuum , liquid will vapourize quickly to create a gas layer for itself. If you neglect the vapourizing effect then vacuum does a greater job than Tlg . The creation of Tlg is basically due to difference in molecular forces
Thank you sir
@@PHYSICSSIRJEE Woww never thought of this 🔥🙏
Sir do you teach offline?
@@seediscute yes, but, I have online courses too ... Check out our Website physicssirjee.com
And apps at the bottom of the website
Plz start challenging problem series.
There is no separate series as such🙂. I keep bringing everything associated with JEE and Olympiads. Perception of Difficulty varies from student to student. Please stay tuned 🙏☺️, I am sure you will find what you require.
In the meantime , you may go through , playlists in the description below this video , "Olympiad workout series" might satiate your need for challenging Problems.
@@PHYSICSSIRJEE 🙃🙂🙂🙂🙂🙂
14:13 sir is the answer to it 9?
Solution video was made . Please search in surface tension playlist or aits select series playlist
Ans is x = 4 ??? For integer type
If no then pls give correct ans.. I will try myself till your solution will come
@@sambhavmishra5423 what is your method sir?
I have calculate change in potential energy
No 🙂. Let others try it too
Ohk sir
But pls upload solution of this question, i have give too much time to it
So pls 🙏
Revised 6jan
🙄
Sir after watching this video I was feeling so dumb that how could I just cram the formula without having it's in-depth knowledge😅😅
Don't worry , I have seen enough people not understand this and cram it because most textbooks don't do justice to this derivation. They either skip it (JEE books) or make it too mathematical (engineering books)
Sir please join unacademy
Thank you so much sir