Fluid 12 || Surface Tension 04 || Capillary Action and Capillary Rise IIT JEE MAINS / NEET ||

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  • เผยแพร่เมื่อ 12 พ.ย. 2024

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  • @PhysicsWallah
    @PhysicsWallah  5 ปีที่แล้ว +540

    Live Classes, Video Lectures, Test Series, Lecturewise notes, topicwise DPP, dynamic Exercise and much more on Physicswallah App.
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    What will you get in the Lakshya Batch?
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    Class 11 chap 10 | MECHANICAL PROPERTIES OF FLUIDS 01 | Introduction : Pressure in a Fluid JEE/NEET
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    Fluid 06 | Applicaion of Bernoulli's Principle -Venturimeter & Speed of efflux- Torricelli's Theorem
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    Fluid 08 || Stokes Theorem and Terminal Velocity IIT JEE MAINS / NEET ||
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    Fluid 09 || SURFACE TENSION 01 : Introduction and Surface Energy IIT JEE MAINS / NEET ||
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    Fluid 10 || Surface Tension 02 || Excess Pressure inside a Liquid Drop IIT JEE MAINS / NEET ||
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    Fluid 11 || Surface Tension 03 || CONTACT ANGLE and Shape of Meniscus IIT JEE MAINS / NEET
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    Fluid 12 || Surface Tension 04 || Capillary Action and Capillary Rise IIT JEE MAINS / NEET ||
    th-cam.com/video/2wVR9m8MxO4/w-d-xo.html

    • @agzbro9494
      @agzbro9494 5 ปีที่แล้ว +6

      Sir i m from dhoomanganj
      Shayad Mile kabhi

    • @jagadeeshk7851
      @jagadeeshk7851 5 ปีที่แล้ว +18

      SIR, plz complete the video

    • @subhashsubhashchandra9556
      @subhashsubhashchandra9556 5 ปีที่แล้ว +3

      Super sir👌👌👌💐💐💐

    • @pulkituppal9665
      @pulkituppal9665 5 ปีที่แล้ว +11

      Sir please complete the last line

    • @swapnilsarthak7427
      @swapnilsarthak7427 5 ปีที่แล้ว +5

      Tube of insufficient length waali part complete nahi ho paayi hai. Sir please check it.☺

  • @jigyasabaranwal6683
    @jigyasabaranwal6683 4 ปีที่แล้ว +4545

    Last lines of this lecture are : Liquid will rise to the top and change it's meniscus and contact angle , contact angle will start becoming equal to 90°. These are the lines as written by alakh sir in his handwritten notes. So I have written here so as to help U guys....Thanks a million alakh sir...♥️♥️

    • @sohamagrawal14
      @sohamagrawal14 4 ปีที่แล้ว +41

      thanks a lot

    • @medicoholic8401
      @medicoholic8401 4 ปีที่แล้ว +15

      🙏🙏🙏

    • @nishantsuryavanshi9682
      @nishantsuryavanshi9682 3 ปีที่แล้ว +54

      contact angle will not change but meniscus will get flatened as contact angle depends on liquid and solid not their heights.

    • @deepalimangulle7805
      @deepalimangulle7805 3 ปีที่แล้ว +10

      Thanks bhai 🙏🙏🙏🙏🙏☺🙏🙏🙏

    • @drrpsingh6443
      @drrpsingh6443 3 ปีที่แล้ว +31

      @@deepalimangulle7805 bs fir yaha pe khtm na fluid mechanics?

  • @Harrypotter-fl6je
    @Harrypotter-fl6je 5 ปีที่แล้ว +2514

    The liquid will rise , and will change its meniscus and finally the miniscus will become flat and the water will stop rising..
    Hope it helps/
    :)

  • @PhysicsWallah
    @PhysicsWallah  6 ปีที่แล้ว +1080

    UP NEXT : IUPAC Nomenclature 11 : Last video of this topic : Bicyclo and Spiro compound naming.. tonight

    • @paltan4092
      @paltan4092 6 ปีที่แล้ว +21

      Sir GOC ka v please 🙏🙏

    • @heartlessboy5772
      @heartlessboy5772 6 ปีที่แล้ว +4

      Bravo

    • @swapnilupreti6110
      @swapnilupreti6110 6 ปีที่แล้ว +13

      Sir, hydrogen chahiye..... Exams mein aa raha hai abhi.....

    • @np7422
      @np7422 6 ปีที่แล้ว +7

      Sir math ka koi solution btaiye please reply sir

    • @induv6110
      @induv6110 6 ปีที่แล้ว +7

      Thank you sir IUPAC ki bahut jaroorat h mujhe

  • @AmitKumar-yt2jn
    @AmitKumar-yt2jn 5 ปีที่แล้ว +2013

    Sir video pura nhi hua h if anyone agree then like it to make this comment highlighted to sir

    • @moodenhancer4803
      @moodenhancer4803 5 ปีที่แล้ว +39

      ha last me video lagta hai record hona band ho gaya

    • @karanchhokar6736
      @karanchhokar6736 5 ปีที่แล้ว +50

      Pta ni kya hua but isse phli wali vedio m bhi yhi hua tha koi problm hui thi but concept toh pura hua hi nhi ab ?? ?

    • @shivanshujajor1330
      @shivanshujajor1330 5 ปีที่แล้ว +27

      Koi nahi notes sa padh lo

    • @the_constructors46
      @the_constructors46 5 ปีที่แล้ว +9

      @@shivanshujajor1330 from where we can get notes?

    • @archanac6947
      @archanac6947 5 ปีที่แล้ว +65

      It will adjust the radius of meniscus such that Rh will remain constant

  • @dhruvsingh1148
    @dhruvsingh1148 3 ปีที่แล้ว +905

    Congratulation to all who have done all lectures of fluid . BEST OF LUCK.

  • @plazmachazer8023
    @plazmachazer8023 6 ปีที่แล้ว +850

    Salute to this legend who made physics and chemistry of 11th and 12th look so easy....
    Who else agree with me?!! 🔥🔥🔥🔥

    • @name8166
      @name8166 6 ปีที่แล้ว +8

      Plazma chazer, only 11th not 12 .sir will start course of 12th class next year

    • @plazmachazer8023
      @plazmachazer8023 6 ปีที่แล้ว +18

      @@name8166 bro im In my drop year and I can relate how much his class 11 concepts are helping me in understanding class 12th concepts :)

    • @rameshmishra3339
      @rameshmishra3339 6 ปีที่แล้ว +1

      Me

    • @rahiltyagi5134
      @rahiltyagi5134 5 ปีที่แล้ว

      Bhai kya sir 12th ka bhi pdhayenge

    • @MohitKumar-hi2zy
      @MohitKumar-hi2zy 5 ปีที่แล้ว

      No Doubt

  • @henajabeen5608
    @henajabeen5608 ปีที่แล้ว +117

    Timestamps
    Capillary Action Introduction for two cases of Contact Angle - 1:10
    Formula for Height of Capillary Rise - 3:08
    Formula Derivation - 4:43
    Explanation of "How considered angle in formula is equal to the contact angle" - 15:45
    Reason why capillary rise or action occurs - 21:01
    Q1 - 26:14
    Q2 - 28:36
    JEE Advanced 2014 Q about Truncated Cone - 35:18
    Derivation of Capillary Rise Height formula by Conservation of Forces - 45:54
    Case of Bent Tube - 57:12
    Case of Insufficient Length of Tube - 1:00:50
    Remaining Lecture --> " Liquid rises to the top and change in meniscus occurs such that the contact angle becomes equal to 90°, i.e., meniscus becomes flat, this causes water to stop rising at the top."

    • @plauseAthar
      @plauseAthar ปีที่แล้ว +1

      ❤❤❤❤

    • @plauseAthar
      @plauseAthar ปีที่แล้ว +2

      10:00

    • @syedmustafa14
      @syedmustafa14 ปีที่แล้ว +2

      Jazakallah khair sister ❤❤❤

    • @Beach_nvgga
      @Beach_nvgga ปีที่แล้ว +2

      thank you lil bro

    • @chirausarma1461
      @chirausarma1461 10 หลายเดือนก่อน

      45-50 mins Sir's Dance 🕺👯😅😅

  • @radhamittal9847
    @radhamittal9847 5 ปีที่แล้ว +782

    Oh my god , I don't know how but I solved that JEE advanced question just bcoz of this legend .. salute man....

    • @foreverandalways6489
      @foreverandalways6489 4 ปีที่แล้ว +9

      Yes 😁

    • @atishsinhaa
      @atishsinhaa 4 ปีที่แล้ว +19

      Good😁 keep it up
      Alakh sir the best of best teacher 😁😁🇮🇳🙏

    • @classfordout4516
      @classfordout4516 4 ปีที่แล้ว +1

      @@foreverandalways6489 😁😁😁

    • @AnandKumar-dn6ju
      @AnandKumar-dn6ju 4 ปีที่แล้ว +7

      Sir give this comment answer at 2:13 in this videoth-cam.com/video/oT6sVJszh2E/w-d-xo.html

    • @AnandKumar-dn6ju
      @AnandKumar-dn6ju 4 ปีที่แล้ว +1

      @@foreverandalways6489 th-cam.com/video/oT6sVJszh2E/w-d-xo.html

  • @DecMyReality
    @DecMyReality ปีที่แล้ว +45

    Sir, aaj bhi aapke lectures hamare kaam aa rahe hai... Dil se shukriya sir 🙇‍♂️

    • @pushpasingh5649
      @pushpasingh5649 ปีที่แล้ว

      I m in 10th prep for jee any suggestions if you have given jee

  • @pavansai5513
    @pavansai5513 4 ปีที่แล้ว +57

    I was never understood why liquid rises in a capillary tube when I was 11th.
    But u made it quite easy I am regretting why I didn't know about this channel at that time...😐

  • @junaidchaudhary3369
    @junaidchaudhary3369 4 ปีที่แล้ว +228

    remaining lecture=When length of tube is less than the height of capillary rise, the liquid molecules on reaching top of the capillary come into contact with horizontal surface of the tube. The surface tension becomes horizontal. There is no vertical force to pull the liquid up and it stops risi

    • @ashmeetkaur274
      @ashmeetkaur274 4 ปีที่แล้ว +1

      Correct brother

    • @shivamarora2969
      @shivamarora2969 4 ปีที่แล้ว +1

      Thanks

    • @Aman-yz4un
      @Aman-yz4un 4 ปีที่แล้ว

      Thanks bro

    • @SachinYadav-ue8nk
      @SachinYadav-ue8nk 4 ปีที่แล้ว +9

      No it's not as the water now forms a bubble like structure having higher radius of curvature given by the r'h'=rh

    • @rajm9787
      @rajm9787 3 ปีที่แล้ว +1

      Will the water overflow if height come very large than length of tube?

  • @jimmybanana9597
    @jimmybanana9597 4 ปีที่แล้ว +114

    The whole playlist of fluids is awesome, sir. Thanks a lot!!!

  • @learnwithme7953
    @learnwithme7953 10 หลายเดือนก่อน +15

    Understood this topic at allen solved all pyq's...
    but still here at 5 year old videos to feel the concept why water rises in capillary, truly sir you are awesome ✨✨

  • @monikazade3713
    @monikazade3713 ปีที่แล้ว +31

    Finally last video. How many of you seen all 12 videos?

    • @druvaKB
      @druvaKB 3 หลายเดือนก่อน +1

      Me ❤

    • @naredlarama2345
      @naredlarama2345 14 วันที่ผ่านมา

      Me

  • @Beast---
    @Beast--- ปีที่แล้ว +16

    Capillary Action Introduction for two cases of Contact Angle - 1:10
    Formula for Height of Capillary Rise - 3:08
    Formula Derivation - 4:43
    Explanation of "How considered angle in formula is equal to the contact angle" - 15:45
    Reason why capillary rise or action occurs - 21:01
    Q1 - 26:14
    Q2 - 28:36
    JEE Advanced 2014 Q about Truncated Cone - 35:18
    Derivation of Capillary Rise Height formula by Conservation of Forces - 45:54
    Case of Bent Tube - 57:12
    Case of Insufficient Length of Tube - 1:00:50
    Remaining Lecture --> " Liquid rises to the top and change in meniscus occurs such that the contact angle becomes equal to 90°, i.e., meniscus becomes flat, this causes water to stop rising at the top."

  • @TusharRaj
    @TusharRaj 6 ปีที่แล้ว +93

    I wish we had teachers like you in school,life would be so much easier

    • @aashnagoyal3516
      @aashnagoyal3516 3 ปีที่แล้ว +1

      Yess its very rightly said 👍👍

    • @exclusivefire8471
      @exclusivefire8471 2 ปีที่แล้ว +2

      Haa bhai ..sahi kaha agr hamare paas aese teacher hote to hame TH-cam se padhne ki jarurat hi nhi padti

  • @vivektiwari5135
    @vivektiwari5135 5 ปีที่แล้ว +31

    Glad to be in all lectures of fluid mechanics.
    And thnx sir to play such a great role in every aspect.
    Thnx very much.

  • @pullareddyabb
    @pullareddyabb ปีที่แล้ว +11

    the way he explained how the liquid rises in a capillary tube is just awesome.23:30

  • @anamikamishra1054
    @anamikamishra1054 3 ปีที่แล้ว +50

    One book
    One pen
    One child
    One teacher
    Can change the world 🙏🙏

    • @neerajchoprarealid3935
      @neerajchoprarealid3935 3 ปีที่แล้ว +3

      Pen ki ink khatam and book khatam ho gai to??🤣

    • @neerajchoprarealid3935
      @neerajchoprarealid3935 3 ปีที่แล้ว +1

      U should write many books and many pens👍🤣🤣🤣

    • @anamikamishra1054
      @anamikamishra1054 3 ปีที่แล้ว +4

      @@neerajchoprarealid3935 New kharid lenge 😂😂

    • @epikherolol8189
      @epikherolol8189 ปีที่แล้ว

      Only 1 child and teacher is valid rest isnt :))
      Pen toh ham Parkour gold khareedte hai :)

  • @vilasbasare
    @vilasbasare 6 ปีที่แล้ว +90

    With due respect, one suggestion Sir.....
    Please rectify the insufficient length capillary tube concept.
    You are really doing a great job for the JEE & NEET aspirants.
    God bless you.

    • @killerguy8802
      @killerguy8802 3 ปีที่แล้ว +4

      Bro hamare 12th boards aaur neet ke syllabus ke liye itna kafi hai....if ur dissatisfied with sir u should go through wikeipedia for infinite source of knowledge 🙄

    • @Harsh-rq3by
      @Harsh-rq3by 2 ปีที่แล้ว

      @@killerguy8802 bhai woh last wala part ke baat kar rhe hai woh sentence bhi mil jaye toh kahi hai aisa

  • @Medishqchemia
    @Medishqchemia 6 ปีที่แล้ว +244

    *Man me Hain vishwas pandey ji Hain sath* 😊

  • @vedzanwar5560
    @vedzanwar5560 ปีที่แล้ว +14

    This man should be given a Bharat Ratna for his evergreen teaching style and contribution to students’ life

  • @manishraikohad9250
    @manishraikohad9250 4 ปีที่แล้ว +22

    If I had a teacher like you earlier then my life would be on a different note

  • @_-_LEGEND_-_
    @_-_LEGEND_-_ ปีที่แล้ว +15

    Reason (based on sir's teachings) for this video's last wrods:- “Liquid will rise to the top and change it's meniscus and contact angle, contact angle will start becoming equal to 90°.” When a liquid rises in a capillary tube the surface tension between solid-liquid comes from molecules of solid that are just above the level of the liquid molecules so that when they attract each other the liquid molecules are pulled upwards. So when the water reaches the top there's no solid molecules above the liquid level, hence there will be no force acting upwards. Hope this helps 🙂

  • @Abhishek-oq2lt
    @Abhishek-oq2lt 6 ปีที่แล้ว +233

    40 views 75 likes power of physics wallah....

    • @swadhinsangramsahoo7165
      @swadhinsangramsahoo7165 6 ปีที่แล้ว +5

      But how

    • @zaidahmedkhan2258
      @zaidahmedkhan2258 6 ปีที่แล้ว +24

      @@swadhinsangramsahoo7165 Because views get updated in an hour and likes get updated in real time .

    • @manusahumanutalk416
      @manusahumanutalk416 6 ปีที่แล้ว +5

      WWE Thanks t#Manutalk MOTIVATION कॉन्फिडेंस यह नहीं है कि लोग आपको पसंद करेंगे ही, कॉन्फिडेंस यह है कि जब वो पसंद ना भी करें, तब भी आप ठीक हो।

      हर छोटा बदलाव बड़ी कामयाबी का हिस्सा होता है।

      जो आसानी से मिल जाता है वो हमेशा तक नहीं रहता, जो हमेशा तक रहता है वो आसानी से नहीं मिलता

    • @SANTOSHSINGH-uj2qz
      @SANTOSHSINGH-uj2qz 4 ปีที่แล้ว +5

      Because TH-cam algorithm is broken

    • @trikerclickkar947
      @trikerclickkar947 4 ปีที่แล้ว

      Bhagat mt bano

  • @rajankumar3487
    @rajankumar3487 3 ปีที่แล้ว +15

    Lecture's last lines for those who need it....
    *Liquid will rise to the top and change it's miniscus and contact angle. Contact angle will start becoming equal to 90°.*

  • @kaverisrivastav7773
    @kaverisrivastav7773 2 ปีที่แล้ว +7

    This is one such guru who can without using any ppt or object can give u the EXACT FEEL of what he is explaining......RESPECT 🙌

  • @Praveensingh-vj3fg
    @Praveensingh-vj3fg ปีที่แล้ว +1

    Great bro ,bahut hi clear padate ho ,thanks

  • @virajparmar8601
    @virajparmar8601 2 ปีที่แล้ว +10

    I solved jee advance question myself in 1st time...just bcause of The Great Alak Sir

  • @arshmalikofficial7803
    @arshmalikofficial7803 ปีที่แล้ว +8

    After 4 years your videos are the best than all others .💓💓💓💓💓

  • @proislive8992
    @proislive8992 2 ปีที่แล้ว +34

    Finally complete this chapter 😀
    Alag hi khushi h after 12 lectures I complete this without any Doubt 😀😀😀😀😀😀
    So much love and respect to u sir ❤️

    • @卂卄乇几卂
      @卂卄乇几卂 2 ปีที่แล้ว +4

      Yeah all doubts are crystal clear ….all thanks to alakh sir 💛💛

  • @himanshusinghrajput3806
    @himanshusinghrajput3806 5 ปีที่แล้ว +22

    💙💚💛💜 Pranam sir . Aap dhanya ho aur aapke mata pita apse v zayada dhanya h jinhone aapko janm diya.💙💚💛💜

  • @someshyadu610
    @someshyadu610 3 ปีที่แล้ว +1

    You are the best sirrr
    App ni hote toh physics koi aache se padha ni pata app badshah ho physics ke

  • @bhatzikra4769
    @bhatzikra4769 4 ปีที่แล้ว +2

    most intellegent and brillient teacher ever i observed

  • @Anonymous-je6oz
    @Anonymous-je6oz 3 ปีที่แล้ว +7

    Last part:
    The radius of curvature of its meniscus increases to a value R'
    So that R'h'=Rh.
    Note that contact angle remains constant as it is property of liquid
    And if we further reduce length of tube then at h'=0 radius of meniscus becomes infinite due to which liquid becomes flat
    Source : cengage
    Hope it helps

    • @therinnegan9794
      @therinnegan9794 2 ปีที่แล้ว +1

      Thanks for completing...was searching for a comment that justifies why the contact angle would not change.

  • @beluga5299
    @beluga5299 6 ปีที่แล้ว +10

    Ma sir ki har video ko 4-5 times dakhta hu jisay sir ki videos ko jaldi sa 1Million+ views mill jaye aur sir ki mahnet rang laye 😎
    Sir you are so great 👍👍👍👏👏

    • @AminSiddique328
      @AminSiddique328 5 ปีที่แล้ว

      Real time Mai dekhte ho ya skip kr k

  • @rameezraza7383
    @rameezraza7383 6 ปีที่แล้ว +28

    sir you doing great job .
    through you all type of students can study
    and mostly poor students who do not have money to afford coaching ..!!
    thank you so much sir ..!!

  • @ShayariWorld047
    @ShayariWorld047 4 ปีที่แล้ว +1

    Sir mujhe nehi lakta ki apse a66a physics or chemistry teacher India mea koi or hea...sir kasamse bohot a66a parhate ho.👍🙏🙏🙏🙏😊😊😊😊

  • @SatishKumar-hi3xy
    @SatishKumar-hi3xy 4 ปีที่แล้ว +1

    Sir ji, aap chha gaye. very soon above 10 million subscribers.

  • @sourasikhadatta6036
    @sourasikhadatta6036 3 ปีที่แล้ว +5

    25:00 Hats off logic 😍

  • @harshchoudhary8407
    @harshchoudhary8407 4 ปีที่แล้ว +15

    Liquid will rise to the top & change it's meniscus radius to a new radius given by R=hr/h' but liquid will not over flow

  • @medhangshidas9644
    @medhangshidas9644 2 ปีที่แล้ว +4

    JEE 2014 ka woh question mast tha...all concepts gets cleared and you gain confidence when you Crack up that advanced level question...brilliant explanation....thank you sir

  • @lalatkishore7033
    @lalatkishore7033 5 ปีที่แล้ว +2

    Sir aaj apke karan hi hamara physics me concept clear rehta hai. Phele hum class me dosto ke dwara diye gaye numerical ko nahi kar pata tha but ab jo bhi numerical dete hai mughe me pura complete kar ke de deta hu.sir your are great legend.💯💯🧔🧔

  • @subhradeeppaul7269
    @subhradeeppaul7269 4 ปีที่แล้ว +1

    You are god of physics. ...thankfull to be your part

  • @comedyarena791
    @comedyarena791 2 ปีที่แล้ว +3

    Best concept of capillary , must watch . Salute alak sir

  • @utkarshkhandelwal1648
    @utkarshkhandelwal1648 3 ปีที่แล้ว +7

    1:40 sir we only write contact angle then also your video will come on top👍

  • @AdityaKumar-bk7ve
    @AdityaKumar-bk7ve 6 ปีที่แล้ว +167

    please ,complete the statement given in the last moment -liquid will...............and change its mensicus.

    • @saptarshiroy8083
      @saptarshiroy8083 6 ปีที่แล้ว +6

      then liquid will rise to the top and change its meniscus

    • @ayushjain8781
      @ayushjain8781 6 ปีที่แล้ว +101

      Then the liquid will rise to the top and start changing its contact angle....
      That is the shape of its miniscus....
      *Contact angle will start becoming equal to 90°*
      Hope now it will be clear before you....
      **Search for detailed explanation in my other coments ...👇👇👇👇

    • @deadpan8270
      @deadpan8270 5 ปีที่แล้ว +5

      @@ayushjain8781 Thanks buddy!!!

    • @tiasabhaumik7955
      @tiasabhaumik7955 5 ปีที่แล้ว +4

      @@ayushjain8781 thanks..bt will the liquid overflow?pls explain

    • @rajneetkaurbhatia8255
      @rajneetkaurbhatia8255 5 ปีที่แล้ว +4

      @@ayushjain8781 why?

  • @vedikadubey2034
    @vedikadubey2034 2 ปีที่แล้ว +6

    At 50:40 sahi m feel aa gyi sir ;😂❤️
    Amazing !! ❤️❤️💯💯

  • @rohitmandal2932
    @rohitmandal2932 6 ปีที่แล้ว +104

    Sir aap free me sab videos kyu daal rhe ho aap to ham jaise garib family ke to bhagwan hai sir👌👌👍👍👌👌

    • @bollywoodfanclub5805
      @bollywoodfanclub5805 6 ปีที่แล้ว +10

      Bhai sir ko youtube paise deta hai

    • @silverminegames8580
      @silverminegames8580 6 ปีที่แล้ว +6

      TH-cam gives money + Adsense

    • @rohitmandal2932
      @rohitmandal2932 6 ปีที่แล้ว +14

      @@bollywoodfanclub5805 youtube bahut kam paise dete hai bhai

    • @bullseye6081
      @bullseye6081 6 ปีที่แล้ว +2

      @@bollywoodfanclub5805 na sir samaj seva karte hai or u tube se jo paise milte hai who bohut kam hai

    • @sumitthakur1625
      @sumitthakur1625 6 ปีที่แล้ว +6

      @@rohitmandal2932 are bhai sir ka apna coaching center h allahabad m par vo abhi band kr rakha h sir n kyuki vo abi kisi exam ki tyari kr rahe hn or kharche k liye or apni memory improve kerte rehne k liye youtube pr video dalte hn ..samjhe ya nhi 👍👍

  • @ShubhamSharma-uu9yn
    @ShubhamSharma-uu9yn 6 ปีที่แล้ว +187

    Jaise hi main sochta hoon thoda khel leta hoon..... Sir ki video aa jaati hai....... Timing hai sir😂😂

    • @Ankit_entertainment23
      @Ankit_entertainment23 6 ปีที่แล้ว +1

      Online tution hai na

    • @rajraj-pu5uo
      @rajraj-pu5uo 6 ปีที่แล้ว +1

      Same here rest krne jaa rha tha😂😂

    • @youcandoit3786
      @youcandoit3786 6 ปีที่แล้ว +11

      *jhunjhune se khelta h n bhai tu😊😊😊*

    • @kshi2t
      @kshi2t 6 ปีที่แล้ว

      Shi baat hai tbhi mene insta open hi kiya tha 😂

    • @ShubhamSharma-uu9yn
      @ShubhamSharma-uu9yn 6 ปีที่แล้ว +5

      You can do it Bhai tu har comment mein meri bezatti karne aa jaya kar 😂😂😂😂...... Main computer game khelne jaa raha tha bhai🙁🙁🙁

  • @abhishekjachak2002
    @abhishekjachak2002 5 ปีที่แล้ว +7

    Sir, aap bahut great ho...aapki wajahse hi mere physics ke sare concept clear ho jate he... You are 😇🙏👼God....

  • @varunkumar41426
    @varunkumar41426 ปีที่แล้ว +1

    So glad.. I found a good video to answer all my doubts. And best explanation

  • @toofangamer385
    @toofangamer385 3 ปีที่แล้ว

    Sir app bahut mast padate hai Dil aur Atma dono sant ho jate hai

  • @ok-kb7yz
    @ok-kb7yz 5 ปีที่แล้ว +251

    Sir.....thode concept chut gaye jyese ki Reynolds number, poiseuille's theorem, critical velocity. Pls sir ise bi include kijye.

    • @hitblank2320
      @hitblank2320 4 ปีที่แล้ว +6

      Yes

    • @santoshkumarsahu9928
      @santoshkumarsahu9928 4 ปีที่แล้ว +11

      Sl arrora krna bnd krde hc verma pe a ke dikha

    • @aizen8758
      @aizen8758 4 ปีที่แล้ว +23

      @@santoshkumarsahu9928 bro ,maybe you should go through NCERT once

    • @bhaskargupta123
      @bhaskargupta123 4 ปีที่แล้ว +1

      Bhai jo padha hai wo yad hai khya

    • @vishveshm9999
      @vishveshm9999 4 ปีที่แล้ว +8

      Santosh Kumar sahu SL arora is not bad...and hc verma itni bhi hard nhi agar concept ache se aata ho...

  • @kirantripathi9978
    @kirantripathi9978 ปีที่แล้ว +15

    King of concept 🔥❤️

  • @chiragbhutada2791
    @chiragbhutada2791 6 ปีที่แล้ว +13

    Coaching me padhaya huva kuch nahi samjha tha ....lekin sir Apke vajah se pure concepts clear hogaye, Thankyou sir😀😊

  • @25fpslagger81
    @25fpslagger81 4 ปีที่แล้ว

    Itni complex jeez itne asaaini se samjha di ...aap bhawaan se kam nhi ho sir👏👏

  • @anitasahoo8418
    @anitasahoo8418 4 ปีที่แล้ว +10

    Last line: Liquid will rise to the top and change its meniscus in such a way that the product of h and R(radius of meniscus) remains constant and liquid never overflows.
    h=2T/R¶g
    implies hR=2T/¶g = constant
    implies hR = constant
    implies R is inversely proportional to h.

  • @balvinderkour3113
    @balvinderkour3113 ปีที่แล้ว +5

    It's 6 o'clock in the morng... And finally I m completing this ch in 2 days... Thnk uhh alakh sir for ur evergreen lectures... These r still helpful for us after so many years...

  • @cinraymile
    @cinraymile ปีที่แล้ว +3

    Revision DONE#2😊👏

  • @amit1507
    @amit1507 4 ปีที่แล้ว

    sir apke jaisa na koi tha na hoga....you are epitome of sucess...ap bhagwan ho sir.

  • @sandeepdas2639
    @sandeepdas2639 3 ปีที่แล้ว

    Thanks sir bohut class me samajne me dikkat ho raha tha .. ab ekdam clear.. Thanks again

  • @mohammedhamza10
    @mohammedhamza10 3 ปีที่แล้ว +84

    Sir thumbnail mai 1hr:11min ki vdo hai but actual play mai 1hr:4min ki vdo hai🤔

    • @M.Saud-07
      @M.Saud-07 3 ปีที่แล้ว +1

      ya😂😂🤣🤣👍

    • @aashnagoyal3516
      @aashnagoyal3516 3 ปีที่แล้ว +7

      Kyabat ha bada notice kra ha isbat ko 😂😂😂🤣

    • @mohammedhamza10
      @mohammedhamza10 3 ปีที่แล้ว +2

      @@aashnagoyal3516 isme notice karne ki kya baat hai clearly dikh rha hai😂

    • @akarshsahay4381
      @akarshsahay4381 3 ปีที่แล้ว

      Are haa

    • @shortvds5791
      @shortvds5791 3 ปีที่แล้ว +1

      Sayad sir ko jaldi hoga .bhagne ki😂

  • @abhilash188
    @abhilash188 ปีที่แล้ว +3

    Even after four yrs still alakh sirs teaching is a master piece

  • @mirzazohebhasan5864
    @mirzazohebhasan5864 4 ปีที่แล้ว +8

    This man is a real artist who paints physics and chemistry so beautifully that one cannot stop him or herself from falling in love with these two subjects .........infinite hat offs sir ....u r a true legend and inspiration to all .Love you 3000 hamara iron man of physics and chemistry and loads n tonns of respect from my end .

    • @KM-om1hm
      @KM-om1hm 2 ปีที่แล้ว

      You cannot love physics untill you learn mathematics

  • @purnima9523
    @purnima9523 5 ปีที่แล้ว

    Sir, hamare ek physics sir hai jo bahut jaldi jaldi padhate hai aur class me kisi ko samajh nahi ata hai,puri class pasand nahi karti hai un sir ko to ab ek sweet si MAM female teacher aa gai hai hamko padhane and we all are happy.

  • @VIPINKumar-nn5jw
    @VIPINKumar-nn5jw 5 ปีที่แล้ว +1

    Feel apki hi video ko dekh kar ata hai sir

  • @Devpandey2006
    @Devpandey2006 9 หลายเดือนก่อน +3

    Thank you sir because of you I got 96 percentile in jee mains jan🎉🎉🎉🎉❤

  • @RameshKumar-xf1dp
    @RameshKumar-xf1dp 3 ปีที่แล้ว +5

    😀😀Bhagwan Aapki har wish poori kare,apko😊 Dher sari khusiyan 😊de sir g, and thanku very😇😇 much for this😃......👏

  • @avij2536
    @avij2536 2 ปีที่แล้ว +28

    The contact angle for pure water and clean glass surface is 0°.. Alakh sir made a small mistake in the previous lecture. The meniscus for pure water and clean glass is exactly a hemisphere, therefore radius of the hemisphere = the radius of tube and the contact angle is 0°

    • @rudraksh8861
      @rudraksh8861 2 ปีที่แล้ว +3

      But sir ne diagram bnaya tha uss hissab se toh 90 hi ban rha tha???

    • @nasirahmadmir2131
      @nasirahmadmir2131 2 ปีที่แล้ว

      What is correct now 90 or 0 degree

    • @AbdurRahimAS
      @AbdurRahimAS 2 ปีที่แล้ว

      You are mistake vai sab

    • @nityapatel8070
      @nityapatel8070 8 หลายเดือนก่อน

      Thanks bro

    • @AiimsSelection
      @AiimsSelection 2 หลายเดือนก่อน

      Sahi he

  • @bhaskarpathak846
    @bhaskarpathak846 ปีที่แล้ว

    Aapke lecture itni achi se samajh aa jata hai ....sir thanks❤❤❤❤❤❤

  • @botanophile8415
    @botanophile8415 3 ปีที่แล้ว +2

    Yes sir you can do explain all the things clearly
    And can clear all our doubts

  • @neelima_singh2007
    @neelima_singh2007 ปีที่แล้ว +3

    Alakh sir's old videos are truly gold.....💡

  • @আৰতি
    @আৰতি 4 ปีที่แล้ว +47

    In this case liquid will rise to the top and change its meniscus and contact angle. The contact angle will start becoming equal to 90 degree.
    Hope it helps. Thank you🙏💕

  • @jenilshah8042
    @jenilshah8042 4 ปีที่แล้ว +6

    Sir 26:45 theta 90 degree hoga na pure water ke liye

  • @Jahnvi-e2s
    @Jahnvi-e2s 17 ชั่วโมงที่ผ่านมา

    Crystal clear ❤thank you so much sir

  • @Al_Hadeesss
    @Al_Hadeesss 5 ปีที่แล้ว +1

    Shukriyaa sirr ....😊😊👍👍👌👍👍☺️☺️☺️☺️☺️☺️

  • @kings7907
    @kings7907 4 ปีที่แล้ว +10

    At 26:11 boom nd concept is now crystal clear sir ur great I just imagined this nd ye like feel hua 😂😂🌼🌹♥️thanks sir

  • @hustler8575
    @hustler8575 2 ปีที่แล้ว +22

    I started fluid mechanics at 4:00 am and completed all 12 chapters till 11:pm. *inner peace * 😌 thanks alakh sir.

    • @Aim787u5
      @Aim787u5 2 ปีที่แล้ว +8

      Bhaya vo 12 chp nhi lectures hai :!-

    • @IG_Ninjaa_3
      @IG_Ninjaa_3 2 ปีที่แล้ว +3

      Dhanya hai prabhu bhai mere se last 6 ya 7 lecture hote hai because chemistry me vv karta huu😂

  • @ritikagupta521
    @ritikagupta521 5 ปีที่แล้ว +7

    Thanku so much sir.. 🙏🙏Your way of teaching is so asum that we love to study and we can feel the topics....

  • @lokeshtetu3971
    @lokeshtetu3971 3 ปีที่แล้ว +1

    lots of blessing from me.....my inspiration alakh sir

  • @yougotthis4701
    @yougotthis4701 4 ปีที่แล้ว

    A best teacher of physics on you tube is alkah sir

  • @rajeshkumarpal7683
    @rajeshkumarpal7683 3 ปีที่แล้ว +5

    i enjoyed the whole playlist
    thanks physicswallah .

  • @naitikgupta6066
    @naitikgupta6066 2 ปีที่แล้ว +57

    I am skipping my school's online physics class and watching this... completing chapter from alakh sir 😇✌️

  • @Utsav106
    @Utsav106 ปีที่แล้ว +8

    I'm from aakash prayagraj and i never understood this entire chapter but just because of you this chapter is now a piece of cake for me......thank you so much sir 🥰🥰❤️❤️❤️❤️

    • @shauryasrivastava5551
      @shauryasrivastava5551 ปีที่แล้ว +1

      I am from Aakash Noida .... Same for me

    • @sumitchauhan3702
      @sumitchauhan3702 ปีที่แล้ว +1

      I am from aakash faridabad and also same for me

    • @chiragcansal3172
      @chiragcansal3172 ปีที่แล้ว

      ​@@sumitchauhan3702bro r u from sector 16 faridabad branch

  • @aryanvashisht2716
    @aryanvashisht2716 4 ปีที่แล้ว +1

    😌😌👌 Bohot Vadiya Pdhaya sir g 👌 👌 😍 Fan ho gye aap k 😍

  • @enthusiasticgamer297
    @enthusiasticgamer297 ปีที่แล้ว +1

    Unimaginable strategy to give us feel of ‘Why Capillary?’. Mind blowing feelings of how the mathematical derivation came from.

  • @saritamittal4491
    @saritamittal4491 3 ปีที่แล้ว +5

    Really amazing sir .... In very beautifully way u gave us concept of fluid ... All concepts of fluid are crystal clear .. Thanks a lot with too much love ..... Hats off sir ... I had scared from this chapter earlier ... Now its my favourite . 😍🙂😃🙃

  • @ironmandedanadan9653
    @ironmandedanadan9653 4 ปีที่แล้ว +6

    26:40 for pure water contact angle is 90°( so h=0)

  • @Aesthetically_x
    @Aesthetically_x 2 ปีที่แล้ว +3

    Who is here after 3 yrs neglecting other teachers to watch these awesome videos and making concepts crystal clear ☺🥳...

  • @aartiprajapati945
    @aartiprajapati945 4 ปีที่แล้ว +1

    It is the best explanation

  • @prince5595
    @prince5595 2 ปีที่แล้ว +1

    For tube of insufficient length: radius of meniscus will b changed.
    h1R1=h2R2..
    h1 is original height from liquid surface, R1 is original radius of meniscus, h2 is new height/length from liquid surface and R2 is new radius of meniscus.

  • @heyritik
    @heyritik 5 ปีที่แล้ว +3

    Best teacher in the world......Thanks sir, for doing this much for us

  • @neetpremium2856
    @neetpremium2856 5 ปีที่แล้ว +86

    Anybody here in December 2019 ???

  • @vineetsingh7003
    @vineetsingh7003 2 ปีที่แล้ว +3

    Very clear

  • @chinkikumari8875
    @chinkikumari8875 4 ปีที่แล้ว +1

    Brilliant physics teacher.

  • @wadahtabassum1134
    @wadahtabassum1134 2 ปีที่แล้ว

    Same topic bohoto ne samjhaya magar hame to aap hi se samajh aya

  • @vrushabhsawalkar7795
    @vrushabhsawalkar7795 5 ปีที่แล้ว +8

    A huge respect to you sir!!!! Great teaching!!

  • @someshwarnathsrivastava2184
    @someshwarnathsrivastava2184 6 ปีที่แล้ว +6

    Sir u are a real god for us....... Thanks for making vedios