JEE ADVANCED 2019 PROBLEM- 💘SURFACE TENSION- AMBIGUITY IN KEY EXPLAINED-JEE SOLUTIONS

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  • เผยแพร่เมื่อ 12 ม.ค. 2025

ความคิดเห็น • 74

  • @kingpatil2882
    @kingpatil2882 4 ปีที่แล้ว +34

    This series is much appreciated, when someone professional solves pyq we actually get a taste of the question rather than just going for solution.

  • @nimitjain8163
    @nimitjain8163 2 ปีที่แล้ว +4

    i always learn something new from your videos. thank you sir😊

  • @aniketsen6845
    @aniketsen6845 3 ปีที่แล้ว +2

    Sir ,one doubt: the height which is calculated is from the bottom of the meniscus ...so shouldn't be the actual height is greater than the calculated theoretical height ? And we have to add and not subtract it ? Sir please clarify once
    TIME STAMP @4:41

  • @VenuGopal-zp3ww
    @VenuGopal-zp3ww 4 ปีที่แล้ว +6

    Perfectly presented explanation sir. Thank you so much.

  • @punit2052
    @punit2052 ปีที่แล้ว +2

    Sir in option D after reaching 5cm point it has two options either to stay back in T1 and Increase its radius of curvature or to take help of the surface tension due to T2. here there is room for the liquid to move upwards, so we cannot say that there is insufficient length. So both options are looking possible. but why does it choose the first option

    • @punit2052
      @punit2052 ปีที่แล้ว +1

      Sir can you please answer this doubt

  • @yashramani9388
    @yashramani9388 4 ปีที่แล้ว +4

    Thanks for the video sir. Please include few more problems on surface tension and modern physics for jee adv sir. HAPPY TEACHERS DAY

    • @PHYSICSSIRJEE
      @PHYSICSSIRJEE  4 ปีที่แล้ว

      Thanks for the wishes🙂 . I will try to include those topics

  • @rushikesh_nale07
    @rushikesh_nale07 3 ปีที่แล้ว +2

    It looks like Capiliary Tube is a very Hot Topic for Advanced point of view!😮

  • @likeaduck2005
    @likeaduck2005 8 หลายเดือนก่อน

    Thank You sir you have cleared all doubt and provided the best solution available on internet .

  • @shounaktikotekar6968
    @shounaktikotekar6968 9 หลายเดือนก่อน

    really liking the videos on this channel!

  • @vkhs562
    @vkhs562 ปีที่แล้ว

    I really appreciate the solution with such a depth . Thanks a lot sir

  • @5dots297
    @5dots297 2 ปีที่แล้ว +1

    I leave the option 1 in my mock test due to this ambiguity and have +2 marks only 😵‍💫as option is also correct as per the jee !!!!

  • @ekjotsingh9349
    @ekjotsingh9349 4 ปีที่แล้ว +4

    SIR! I have done that fluids question where "Atwood machine" logic worked! However I am having trouble with another question (conceptual) which is Q24-25(Para) Chapter 13 [Page 13.8].. Requesting you to take it up whenever you can.. please

    • @PHYSICSSIRJEE
      @PHYSICSSIRJEE  4 ปีที่แล้ว

      I will do that 👍🙂

    • @RkRohit
      @RkRohit 4 ปีที่แล้ว +3

      Which book are ou talking about ekjot
      Could you pls share

    • @PHYSICSSIRJEE
      @PHYSICSSIRJEE  4 ปีที่แล้ว +1

      @@RkRohit I think Pathfinder

  • @rushikesh_nale07
    @rushikesh_nale07 3 ปีที่แล้ว +1

    Awesome Explained!💙

  • @yatharthgupta6468
    @yatharthgupta6468 3 ปีที่แล้ว

    Sir at 4:43 did u mean to say that the h we calculate using formula is less than the actual h?

  • @Fighter_Believer_Achiever
    @Fighter_Believer_Achiever 3 ปีที่แล้ว +1

    Its beta-gamma of preparation 🔥

  • @Fighter_Believer_Achiever
    @Fighter_Believer_Achiever 3 ปีที่แล้ว +1

    Thank you very much sir🥳🥳🥳🥳

  • @AyushKumar-tt2lq
    @AyushKumar-tt2lq 4 ปีที่แล้ว +3

    sir in option D why the fluid would not rise up in T2 capillary.The surface tension of T2 can act on the fliud to pull it upwards.Why it does not happen?

    • @PHYSICSSIRJEE
      @PHYSICSSIRJEE  4 ปีที่แล้ว +5

      Meniscus always changes shape gradually. So angle of contact changes and holds the liquid in T1 itself. That's the beauty of "insufficient length" Concept

    • @AyushKumar-tt2lq
      @AyushKumar-tt2lq 4 ปีที่แล้ว

      @@PHYSICSSIRJEE
      is there no case in which the fluid flows upwards from one capillary to another capillary?

    • @PHYSICSSIRJEE
      @PHYSICSSIRJEE  4 ปีที่แล้ว

      @@AyushKumar-tt2lq only if you submerge T1 Completely 😁

    • @AyushKumar-tt2lq
      @AyushKumar-tt2lq 4 ปีที่แล้ว

      @@PHYSICSSIRJEE
      ok sir
      nicely understood the concept!!!

    • @JEE-zm3sh
      @JEE-zm3sh 8 หลายเดือนก่อน

      @@PHYSICSSIRJEE mindblowing XO

  • @lakkyjha9284
    @lakkyjha9284 4 ปีที่แล้ว +1

    Sir it was very very helpful!!!!!!!🙏🙏🙏

  • @metablaze3523
    @metablaze3523 3 ปีที่แล้ว

    sir so in 8:28 will the equations be like 7.5*(r initial)=5*(r new)

    • @metablaze3523
      @metablaze3523 3 ปีที่แล้ว

      im not much confident in surface tension so i dont think im correct

  • @shivasudhan165
    @shivasudhan165 3 ปีที่แล้ว

    Sir we have to subtract some height because due to extra weight of liquid in meniscus the height risen is actually lesser?

  • @ankitsoni9275
    @ankitsoni9275 2 ปีที่แล้ว +1

    Good morning guru ji ❤️

  • @vedbrahmbhattiit-j4497
    @vedbrahmbhattiit-j4497 3 ปีที่แล้ว +1

    Very well explained sir 🔥👍🏻👌

  • @ponnapu
    @ponnapu 4 ปีที่แล้ว

    janardhan sir can u please make a video on normal reaction on a rod falling smoothly on a frictionless floor as a function of theta

  • @yatharthgupta6468
    @yatharthgupta6468 3 ปีที่แล้ว +1

    Well explained sir👌👌

  • @vaibhavkumar5419
    @vaibhavkumar5419 4 ปีที่แล้ว +5

    Sir ....please also explain jee advanced 2017 question of rotation ....(RING AND FINGER QUESTION)....

    • @PHYSICSSIRJEE
      @PHYSICSSIRJEE  4 ปีที่แล้ว +1

      I will take it up in coming weeks 👍. For starters there is no answer in the options for the Question. Also information is insufficient to arrive at one unique Answer

    • @thermmech4835
      @thermmech4835 4 ปีที่แล้ว

      @@PHYSICSSIRJEE sir information is complete but many of them mistook the point of common interaction as a IAR(instantaneous axis of rotation) due to which and is not coming or coming wrong but Question is complete if we could see that both circle will move with same omega.

    • @PHYSICSSIRJEE
      @PHYSICSSIRJEE  4 ปีที่แล้ว

      @@thermmech4835 it is impossible for the ring to stay in horizontal plane when gravity is present .

    • @thermmech4835
      @thermmech4835 4 ปีที่แล้ว

      @@PHYSICSSIRJEE sir but that is a common sense that they have taken an ideal case since it not given so they may take it as ideal case of being ring horizontal in presence of gravity since options were not like of a real situation.

    • @PHYSICSSIRJEE
      @PHYSICSSIRJEE  4 ปีที่แล้ว +1

      @@thermmech4835 that's what the problem is , what looks like common sense to us outside the exam hall , may not be so physically simple for the students in the exam hall 👍🙂.
      Btw , why did you think JEE deleted the Question ( first one ) in the final key?

  • @vaibhavsharma1196
    @vaibhavsharma1196 4 ปีที่แล้ว

    Awesome sir very well explained

  • @amiyancandol4499
    @amiyancandol4499 4 ปีที่แล้ว +1

    Nicely Explained 😄

  • @anishtakshak6515
    @anishtakshak6515 6 หลายเดือนก่อน

    Thank you sirji😊❤

  • @vilakshangupta380
    @vilakshangupta380 3 ปีที่แล้ว +1

    Sir, at 4:25 when you explain correction in height, you say that we measure the height from the bottom of the meniscus and so the height is slightly higher and we are supposed to subtract something from it....but sir, I didn't understand how it is higher when we haven't included that water which is left out... so shouldn't it be greater than the measured value... and shouldn't we add something to it? and is there a way to calculate that correction?

    • @PHYSICSSIRJEE
      @PHYSICSSIRJEE  3 ปีที่แล้ว

      Calculation is easier for zero contact angle. Please refer to NCERT lab manual for the Calculation

    • @vilakshangupta380
      @vilakshangupta380 3 ปีที่แล้ว +1

      @@PHYSICSSIRJEE Ok sir, but why is the height correction more than that measured? Why shouldnt it be less than measured as we haven't accounted the water in those spaces...

    • @likeaduck2005
      @likeaduck2005 8 หลายเดือนก่อน

      @@PHYSICSSIRJEE SAME DOUBT SIR PLEASE TELL

  • @vibhashukla5729
    @vibhashukla5729 3 ปีที่แล้ว +1

    Sir I am not able to understand the meaning of correction here please reply 🙏🙏??

  • @nimitjain8163
    @nimitjain8163 2 ปีที่แล้ว

    thank you sir😊

  • @yashaswini7352
    @yashaswini7352 4 ปีที่แล้ว

    Thanks sir :)

  • @aadityaraj996
    @aadityaraj996 3 ปีที่แล้ว

    thanks sir

  • @projester136
    @projester136 4 ปีที่แล้ว +1

    Sir please take up OPHO q 38

  • @shashwatmishra4342
    @shashwatmishra4342 3 ปีที่แล้ว

    Sir got concept cleared ,was facing problem while solving,thanks a lot

  • @RkRohit
    @RkRohit 4 ปีที่แล้ว +2

    Sir thanks a lot for this video and could you pls take some good problems from modern physics atomic collision topic as very few problems are there in pyq could you pls bring up some modern physics problem sir

    • @PHYSICSSIRJEE
      @PHYSICSSIRJEE  4 ปีที่แล้ว +1

      Already made one in AITS select playlist. Please kindly check once

    • @RkRohit
      @RkRohit 4 ปีที่แล้ว

      PHYSICS SIR JEE - IIT JEE and OLYMPIAD - JANARDHAN sorry sir didn’t check properly thanks sir

  • @tanveersharma2793
    @tanveersharma2793 4 ปีที่แล้ว

    Waiting for corolis force !!!

    • @PHYSICSSIRJEE
      @PHYSICSSIRJEE  4 ปีที่แล้ว

      It will take time 🙂

    • @tanveersharma2793
      @tanveersharma2793 4 ปีที่แล้ว

      @@PHYSICSSIRJEE Sir can you recommend some theory books for physics?

    • @PHYSICSSIRJEE
      @PHYSICSSIRJEE  4 ปีที่แล้ว +1

      @@tanveersharma2793purpose : JEE advanced or OLYMPIADS?

    • @tanveersharma2793
      @tanveersharma2793 4 ปีที่แล้ว

      Olympiads Sir I have nothing to do with jee advanced😁

    • @tanveersharma2793
      @tanveersharma2793 4 ปีที่แล้ว

      I'm a ! medical aspirant aspiring for physics and biology Olympiads

  • @swathik8422
    @swathik8422 2 ปีที่แล้ว +3

    sir in option d instead of adjusting the angle,why cant the water rise in the second tube and then we can adjust the angle from there?

  • @simplephysics104
    @simplephysics104 2 ปีที่แล้ว

    Thank you very much sir ❤️

  • @simisimi9362
    @simisimi9362 ปีที่แล้ว

    Thank you sir