Rotational Motion 12 || Conservation Of Angular Momentum || Angular Momentum IIT JEE MAINS / NEET |

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  • Опубліковано 20 гру 2024

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  • @PhysicsWallah
    @PhysicsWallah  6 років тому +359

    Live Classes, Video Lectures, Test Series, Lecturewise notes, topicwise DPP, dynamic Exercise and much more on Physicswallah App.
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    Join the Batch on Physicswallah App bit.ly/2SHIPW6
    Registration Open!!!!

    What will you get in the Lakshya Batch?
    1) Complete Class 12th + JEE Mains/ NEET syllabus - Targeting 95% in Board Exams and Selection in JEE MAINS / NEET with a Strong Score under Direct Guidance of Alakh Pandey.
    2)Live Classes and recorded Video Lectures (New, different from those on UA-cam)
    3)PDF Notes of each class.
    4)DPP: Daily Practice Problems with each class having 10 questions based on the class of JEE Mains/NEET level.
    5)Syllabus Completion by end of January, 2021 with topicwise discussion of Last 10 Years Problems in Boards, JEE Mains/NEET within Lecture.
    6)The Complete Course (Video Lectures, PDF Notes, any other Study Material) will be accessible to all the students untill JEE Mains & NEET 2021 (nearly May 2021)
    7)In case you missed a live class, you can see its recording.
    8)You can view the videos any number of times.
    9)Each chapter will be discussed in detail with all concepts and numericals
    10)Chapterwise Approach towards JEE Mains/ NEET & Board Exams.
    ****Test Series for XI & XII****
    We provide you the best test series for Class XI,XII, JEE, NEET chapterwise, which will be scheduled for whole year.
    The test series follows very logical sequence of Basic to Advance questions.&
    Evaluation of Test and Solution to all the questions at the end of the test.
    Class 11 chapter 7 | Systems Of Particles and Rotational Motion | Rotational Motion 01: Introduction
    ua-cam.com/video/vSJ66ADJd2o/v-deo.html
    Class 11 chapter 7 | Rotatational Motion 02 || Torque - Moment Of Force - Turning Effect Of Force |
    ua-cam.com/video/V-u_RJY47lc/v-deo.html
    Class 11 chapter 7 | Rotational Motion 03 | Rotational Equilibrium IIT JEE / NEET | Torque Problem |
    ua-cam.com/video/sB6Z3grKxJQ/v-deo.html
    Class 11 chapter 7 || Rotational Motion 04 || Moment Of Inertia - Introduction ||
    ua-cam.com/video/HcNgEXuYT3k/v-deo.html
    Rotational Motion 05 | Moment Of Inertia Of Continous Bodies - Rod , Ring ,Disc, Cylinder,Triangle
    ua-cam.com/video/2fw1r4Z6f0s/v-deo.html
    Rotational Motion 06 || Moment Of Inertia Of Sphere and Cone || MOI of solid Sphere JEE MAINS /NEET
    ua-cam.com/video/FAjQLbmFMKU/v-deo.html
    Rotational Motion 07 || Perpendicular and Parallel Axis Theorem Moment Of Inertia JEE MAINS / NEET
    ua-cam.com/video/uUxK-X0spwo/v-deo.html
    Rotational Motion 08 | Best Numericals of Rotational Motion and Rigid Body Dynamics JEE MAINS /NEET
    ua-cam.com/video/gPGOaKy7h2o/v-deo.html
    Rotational Motion 09 | Hinge Forces | Rigid Body Dynamics JEE MAINS / NEET | Rotational Numericals
    ua-cam.com/video/5Bk1qNIt-1g/v-deo.html
    Rotational Motion 10 || Kinetic Energy of a Rotating Body | Work Done By Torque IIT JEE MAINS / NEET
    ua-cam.com/video/i0h5G6sd_uI/v-deo.html
    Rotational Motion 11 || Angular Momentum IIT JEE MAINS / NEET || Angular Momentum of Rotating Body
    ua-cam.com/video/r-l0R0Cqst8/v-deo.html
    Rotational Motion 12 || Conservation Of Angular Momentum || Angular Momentum IIT JEE MAINS / NEET
    ua-cam.com/video/8utUFjNarDI/v-deo.html
    Rotational Motion 13 | Rolling Series 01 | Combined Translation + Rotational Motion |IIT JEE / NEET
    ua-cam.com/video/JvrArfd__D0/v-deo.html
    Rotational Motion 14 | Rolling Series 2 |MOI , KE and L expression for Translation + Rotation Motion
    ua-cam.com/video/Twk2gTjHVFE/v-deo.html
    Rotational Motion 15 | Rolling Series 3 | PURE ROLLING JEE MAINS / NEET | Uniform PURE ROLLING
    ua-cam.com/video/iTH0jHapzt4/v-deo.html
    Rotational Motion 16 | Rolling Series 4 | Forces in PURE Rolling | Pure Rolling IIT JEE MAINS / NEET
    ua-cam.com/video/23A-54jjIGU/v-deo.html
    Rotational Motion 17 | Pure Rolling on Inclined Plane IIT JEE MAINS / NEET | Rolling Series 5
    ua-cam.com/video/Ly9OyM0OT8s/v-deo.html

    • @shynadixit8621
      @shynadixit8621 5 років тому +5

      Sir 59:00 me JEE 2013 question ....
      Circular platform ka radius is 0.4 and uske ander 2 circular rings ka radius 0.2 .... That means ring ka diameter circular platform ke radius ke equal hai.... But aapne diagram kuch or hi banaya hai and use hi explain kiya hai... 🤔
      Please check once if there would be some other condition after correcting the diagram....

    • @charuhasgumaste249
      @charuhasgumaste249 5 років тому +6

      Sir @ 44:08 velocity w.r.t ground is given hence pappu velocity will be v-wr ??
      Plzz check sir
      Yours teaching is amazing sir 😊👍👍

    • @parimalkothari7607
      @parimalkothari7607 5 років тому +2

      @@shynadixit8621 diagram ka to koi nahi par 1:02 pe sir ne moment of inertia mr^2+mr^2 liya hai jab ki vo MR^2 /2+mr^2 hona chahiye tha

    • @seemabhende765
      @seemabhende765 5 років тому +3

      Sir titration Ka video kB dalre ho

    • @jaipalmaurya5249
      @jaipalmaurya5249 5 років тому +3

      Sir 53:00 me JEE 2014 k Question me perpendicular distance of balls when they leave the disc 0.5 nhi hoga??
      Kyuki jb balls disc se leave karegi to disc ki boundary pe hogi. Aur circle me centre se boundary k kisi bhi point ka perpendicular distance to radius hi hota h.....
      Please clear my doubt

  • @harshitsingh4619
    @harshitsingh4619 5 років тому +1155

    this video is a masterpiece.. coaching are nothing compared to this... when i studied, teachers only cared to finish their syllabi on time.

    • @sanvipatil5356
      @sanvipatil5356 4 роки тому +39

      Yes yes I can understand your feelings (VERY WELL).

    • @teqarine5752
      @teqarine5752 4 роки тому +32

      That's why we didn't join coaching bruh

    • @kaustavmedhi5567
      @kaustavmedhi5567 4 роки тому +7

      Yes true

    • @mayanknjays3085
      @mayanknjays3085 4 роки тому +7

      Shi bol re ho bro

    • @mayanknjays3085
      @mayanknjays3085 4 роки тому +31

      Bahoot se coaching wale to apna knowledge showoff krne k chkkr m ek hi topic ko itta time tk odhate h jitte ki zroort bhi nhi hoti

  • @Ayush-vz9hw
    @Ayush-vz9hw 5 років тому +615

    Thank you so much Sir.
    After HC Verma,you would be the man,who will teach Physics to new Young Generation of India

  • @laldharyadav6174
    @laldharyadav6174 4 роки тому +101

    Physics wallah is different from all others teacher give respect to him

  • @anshulanand02
    @anshulanand02 2 роки тому +968

    Who are watching these old videos instead of new ones cuz these are just too good😁

  • @nitinvatsalprudhvi8926
    @nitinvatsalprudhvi8926 4 роки тому +56

    Thank you very much sir. I had missed the first chapters of physics, so I thought that I will never be able to solve physics problems , but due to your amazing teaching today I have confidence in myself that I can do physics and I can be good at it . You are amazing sir . You may not read this comment because I'm watching this video 2 years later, but I just wanted to tell this. Thank you alakh sir

  • @ankita.justme3594
    @ankita.justme3594 5 років тому +733

    I was able to solve jee advance question on my own .
    Sir u cant imagine how much happiness u gave to us students .
    Love and respect for physics wallah. ☺

  • @shivamkumar-ft3tx
    @shivamkumar-ft3tx 6 років тому +135

    one of the best teacher whole world.who makes.students life

    • @johndoley425
      @johndoley425 5 років тому +1

      Alakhs sir

    • @Yashkumar-pv5tj
      @Yashkumar-pv5tj 4 роки тому +1

      @@johndoley425 lekin yarr question ka level low rahta hai JEE advanced ke question toh diye lekin woh bhi joh USS sall ke sabse easiest questions me the

    • @Akashkumar-ot1sw
      @Akashkumar-ot1sw 4 роки тому +6

      @@Yashkumar-pv5tj questions easy nai hai tumhari soch questions ko easy banati hai every thing is possible it needs the way you think the question

    • @Terminator-iq9kb
      @Terminator-iq9kb 3 роки тому +1

      @@Akashkumar-ot1sw sahi mein

    • @utkarshverma6832
      @utkarshverma6832 3 роки тому

      Of course

  • @allabakashshaik8851
    @allabakashshaik8851 3 роки тому +83

    I done jee 2004 question without confusion.Thanks for physics wallah for providing us this video's. First in my college I feared about physics which is my one of favourite the subject but now I definitely say that my interest on physics is doubled.

    • @VeDU261
      @VeDU261 2 роки тому +3

      Me to +jee advance 2013

  • @shivam7631
    @shivam7631 4 роки тому +74

    My answer is
    1) *(d)4k* and it is *Wrong* But I will *Improve* myself....31:20
    2) *3R/5* and it is *Wrong* But I will *Improve* myself....39:47
    3) *(a)4rad/sec* and now it is correct, I'm very happy....55:38
    4) *(d)8rad/sec* and again my answer is correct....1:04:39
    5) *(c)3.33rad/sec* and need more improvement....1:13:49
    6) *(a)2w/3* and it is again wrong....1:21:08
    *BUT I WILL IMPROVE MYSELF* (2:45)
    *LUV U SIR* ❤

  • @henajabeen5608
    @henajabeen5608 Рік тому +55

    Timestamps
    Revision of Previous Classes - 3:55
    Two Formulae of L - 5:58
    Explanation by NLM #2 - 8:20
    Proof for External Torque - 16:33
    1st example - 19:02
    2nd example - 22:50
    Qn - 24:32
    3rd example - 26:14
    JEE 2004 Q - 27:10
    JEE 2015 Q - 32:15
    Qn - 40:20
    JEE Adv. 2014 Q - 45:50
    JEE 2013 Q - 56:15
    Qn - 1:05:30
    Qn about Star - 1:15:00
    Last Qn - 1:18:05

    • @clashervatsal7305
      @clashervatsal7305 Рік тому +2

      Thanks bro/sis

    • @khusi7547
      @khusi7547 Рік тому +1

      Thank You!?

    • @nkhnouk3781
      @nkhnouk3781 Рік тому +1

      11th or ?

    • @xxCr7xx823
      @xxCr7xx823 9 місяців тому +1

      45:06 Why the disc will rotate forward if you started running?It should move backward (clockwise) and the disc will try to move Anti clockwise …This video is confusing 45:06

    • @saradasarawagi6622
      @saradasarawagi6622 6 місяців тому

      ​@@xxCr7xx823can u explain how is the disc moving forward

  • @ghanshamrahate4077
    @ghanshamrahate4077 6 років тому +43

    Sir you are the best teacher...
    Explained in very easy manner!!

  • @cookie_pookie_lab5590
    @cookie_pookie_lab5590 3 роки тому +67

    Sir bcz of you I was finally able to solve and understand rotational motional😭😭😭😭thanks for existing sir , I'm a 2nd ye dropper for neet exam and my physics was very weak

  • @Pariishaa
    @Pariishaa 11 місяців тому +11

    5 years had passed but this video will never get old and students will always watch this video for competition 💓

  • @rajaganappathiesshanmugasu3098
    @rajaganappathiesshanmugasu3098 4 роки тому +44

    In JEE all questions are based on circular platform as given by sir 🔥

  • @mayurpatel2506
    @mayurpatel2506 6 років тому +209

    11:15 sir we will pray together to God for you
    Aapki sehat achi rahei

  • @AryanSingh-qr9oz
    @AryanSingh-qr9oz 5 років тому +27

    26:32
    Sir's true LOVE...!!
    👌👌🥰

  • @MasterSarvajeet
    @MasterSarvajeet 4 роки тому +24

    Raat ke baj rahe hai 2 mein dekh raha hoon lecture
    No words for sir,only ❤🙏🙏🙏🙏🙏

  • @vihanbhatt1503
    @vihanbhatt1503 Рік тому +21

    Thanks sir , You understand our emotions so well

  • @mohitkohli4957
    @mohitkohli4957 4 роки тому +6

    And two magical words of this video are kutuk , surrrrr !

  • @harnoortuli5066
    @harnoortuli5066 5 років тому +44

    Couldn't think for that jee adv question i tried to converse 2 masses and forgot about the ting
    I would try to improve.
    Thank you sir

  • @premshankar6383
    @premshankar6383 5 років тому +15

    greatest physics teacher ever to teach me

  • @ayanchakraborty3081
    @ayanchakraborty3081 6 років тому +474

    Padne ka sref ek hi tarikha hai.
    1.NCERT k books padhe
    2.Physicswallah k videos dekhe aur vdeos dekhte huye notes le.😂😂😂

    • @srizzchann
      @srizzchann 5 років тому +57

      Aur
      3. Video ko pause karke solve kare nahito "isme hamara ghata" 😂😂

    • @AK-ej5xe
      @AK-ej5xe 5 років тому +21

      Han bhai fir to tu pakka select NAHI hoga

    • @ashalatanegi320
      @ashalatanegi320 5 років тому +2

      T4Techs ....
      ....

    • @namankumar8186
      @namankumar8186 4 роки тому +6

      Neet prep ha ha

    • @Yashkumar-pv5tj
      @Yashkumar-pv5tj 4 роки тому +9

      @Mayur Verma he is right NCERT is not the reference book because in NCERT theory is written in high order English

  • @shadowsdescendant3325
    @shadowsdescendant3325 2 роки тому +20

    Gd eve sir, I am a Jee 2024 aspirant and i really like ur vids and u hav been a great help for several students like me, I was watching this video and u gave some jee adv ques, I solved all of them sir , u asked us to write in the comment box so i did , again thank u so much for your help sir

  • @nishchaljain3790
    @nishchaljain3790 3 роки тому +3

    JEE Advanced 2015 Q(Answer is 4R/5) solved it completely in one go without seeing soln thank you sir sab aapka kamaal hai......jab shishya ka guru bhagwaan toh shishya dev to ban hi jaata hai....thank you so much sir for this love your videos

  • @manjotsingh8157
    @manjotsingh8157 5 років тому +168

    18:30 ..it was asked in my school exam prove dL/dT = tow..i applied same method..my shitty teacher marked that wrong becuase he didnt understand that method..he is just a teacher who follows the school book nothing else

    • @rahulravi661
      @rahulravi661 5 років тому +36

      You can ask him to show what is wrong.If he could , agree else say a nice dialogue(Just Kidding, ask him why he didn't give you marks) and walk out in slow motion

    • @madhusingh3196
      @madhusingh3196 4 роки тому +24

      Ask him to watch Alakh Pandey lecture series of rotation #12. He will probably give u marks 😂😂😂😂

    • @sarthakgirdhar2833
      @sarthakgirdhar2833 4 роки тому +19

      Well, as it turns out, in this case the teacher was right. The proof Alakh sir gave us was for symmetrical bodies, and far from rigorous. The full proof goes something like this-
      *L* = *r* x *p*
      Differentiating both sides-
      d *L* /dt=(d *r* /dt x *p* ) + ( *r* x d *p* /dt) {This law comes from vector calculus}
      The first term in RHS is 0 as velocity is parallel to momentum.
      Thus d *L* /dt= ( *r* x d *p* /dt)= *r* x *F* which is the result we desired. Here I have boldfaced vectors because arrows were not available. I think Alakh sir knew this already. But teaching this when students are preparing for JEE is quite useless. Humein bas feel agai questions ki 😂😂 Utna bhot hai bhai

    • @devanshmanchanda8439
      @devanshmanchanda8439 4 роки тому

      @Manjot Singh are bhAi teacher ka reason to dekh lo every teacher is awesome

    • @devanshmanchanda8439
      @devanshmanchanda8439 4 роки тому

      Tere 4marks cut gaye to kya hua 96 to nhi aay na tere maam ki kya galti h

  • @saifafridi5302
    @saifafridi5302 4 роки тому +7

    Sir Allah apko hmesa khush rkhe love u sir 😘😘😘😘😘😘

  • @nitishanand6242
    @nitishanand6242 5 років тому +15

    Notification squad..
    Best teacher found !!

  • @RameshKumar-xf1dp
    @RameshKumar-xf1dp 3 роки тому +5

    Sir iss bhagat ko apne Mahadev mil gaye...💛☺ Thanks sir 🙌🙇🙇gg🌷🌷

  • @trishakjaiswal7110
    @trishakjaiswal7110 2 роки тому +2

    Alakh sir se itna achha samjh me aata h ki khin lagta h ki chapter itna kathin aur alakh sir ne itna achha samjhya h iska matlab khin kuch kam padhya h par aisa nhi h alakh sir + self question solving se bhayankar combo kuch bhi nhi h

  • @amansaxena5620
    @amansaxena5620 6 років тому +59

    physicswalla is best😍😍❤❤..alakh sir u r the best😘😍

  • @akshitkapila07
    @akshitkapila07 6 років тому +72

    SIr I am a dropper. Mujhe Rotation se bhut drr lgta tha but sir aapne mera interest rotation me bna diya.
    Thank u so much Sir. Love U......

  • @vkasciencechannel1047
    @vkasciencechannel1047 4 роки тому +17

    After seeing sir's lecture the hardest questions of JEE advance are also like
    HALWA

    • @Rocketman67
      @Rocketman67 2 роки тому

      You remember me 😱

    • @Rocketman67
      @Rocketman67 2 роки тому

      I got your comment randomly 😲

  • @Xavier-ys4cs
    @Xavier-ys4cs 3 роки тому +8

    58:48 :- dil mein aag and hc verma kitaab ko jaala de😂😂😂😂😂😂👍👍👌

    • @manishsashi5420
      @manishsashi5420 3 роки тому +1

      Kaise ho Xavier 😆 🤣

    • @Xavier-ys4cs
      @Xavier-ys4cs 3 роки тому +1

      @@manishsashi5420 bro im fine trying to comment in all remaing facebook memes...

    • @anushkasaraswat5702
      @anushkasaraswat5702 3 роки тому

      @@Xavier-ys4cs hmmm pta haii😅🤣🤣

  • @Kajalkumari-wi1re
    @Kajalkumari-wi1re 3 роки тому +2

    To. Alakh sir. Sir jaise ma papa ke lie kuch bhi bola jaye wo bhi km padh jata h waise hi sir aapke lie bhi bolne ke lie mere pas koi words ni h bs itna bolna chahte hu ki mera yek dream h life me yek na yek baar aapse milna chahte hu and aapka aashirwad lena chahti hu ❤❤). Lots of❤❤❤❤❤❤. From Kajal 😁

  • @ashanasinha
    @ashanasinha Рік тому +6

    You video never gets old
    Even the new one cannot replace this

    • @xxCr7xx823
      @xxCr7xx823 9 місяців тому

      45:06 Why the disc will rotate forward if you started running?It should move backward (clockwise) and the disc will try to move Anti clockwise …This video is confusing 45:06

  • @vanshmalhotra8451
    @vanshmalhotra8451 5 років тому +6

    Sir, kota can't compete your teaching, u can't compare kota with u, u are the best teacher🙏🙏👍👍👍👍

  • @R.G_Buckets_shorts
    @R.G_Buckets_shorts 4 роки тому +7

    Sir before seeing your lecture my mind angular moving but after seeing your lecture my mind still to angular momentum 🙏🙏 thanks a lot Sir ❤️❤️ you are GREAT ❤️ Don't leave us Alone NEVER ❤️❤️🙏🙏🙏🙏

  • @basavasagar806
    @basavasagar806 4 роки тому +2

    Great, wonderful,excellent super, extraordinary, Awesome,Areee sir aapko isse jyada bole to bhi kam hai sir love you sir physics ka bada baaap

  • @AyushKumar-e4c5j
    @AyushKumar-e4c5j Рік тому +8

    35:40
    My answer - (d)
    Feeling good after solving JEE question being a neet aspirant.
    Thats true koshish krne walon ki haar nhi hoti.
    Hike sunke Darna nhi chahiye.
    Will try in the same way in future so that I'll make physics my friend.
    Thankyou Alakh Sir.
    😊😊

  • @tithipatel6741
    @tithipatel6741 4 роки тому +4

    Best video on rotational motion thank you sir you are really lifeline for physics for those students those whom don't have nice coachings nearby

  • @navneet2407
    @navneet2407 5 років тому +44

    my answer of question 2 is 3/5 R. I will improve sir

  • @ashishgangwar8287
    @ashishgangwar8287 3 роки тому +15

    I solved my first jee advanced question without any kind of help bcz of Alakh sir I will always thankful for u

  • @arclight4600
    @arclight4600 2 місяці тому +3

    watching this video exactly 6 years later, still the best!

  • @Odix_live
    @Odix_live 3 роки тому +9

    I loved how u explain all the concept hope your Vedio reach all the needy one ☺☺☺

    • @aakingeivo1111
      @aakingeivo1111 2 роки тому +1

      what do u mean by needy one is that ee or u
      just kidding :D

  • @harshitgarg6483
    @harshitgarg6483 5 років тому +10

    Happy birthday sir 💥👑🎆🎇🎉. Thank you so much for helping me out throughout the year

  • @venugopaltalari5817
    @venugopaltalari5817 6 років тому +174

    U deserve 1M subs

  • @akashmaurya3313
    @akashmaurya3313 5 років тому +8

    Thanks so much for the give up ur golden time to us,,,

  • @md.mohsinkhan9227
    @md.mohsinkhan9227 2 місяці тому +3

    Sir you are the bestt teacher
    You deserve too much respect ❤

  • @satishchand8163
    @satishchand8163 4 роки тому +4

    Sir today is children's day and your teaching is too impressive .it is my best gift.today is also diwali.happy diwali sir.who satisfies to sir like here.

  • @ayurvedahacker3238
    @ayurvedahacker3238 6 років тому +24

    Finally mujhe ye chapter samjh mein aane lga... Thank you sir

    • @xxCr7xx823
      @xxCr7xx823 9 місяців тому

      45:06 Why the disc will rotate forward if you started running?It should move backward (clockwise) and the disc will try to move Anti clockwise …This video is confusing 45:06

  • @prajwalsajji1985
    @prajwalsajji1985 4 роки тому +5

    aaj maza aa gaya. Amazing questions sir. Thank you. Tday all question were previous year advanced questions and were from Verma,
    Thank you once again

  • @RachanaAgarwal-t1e
    @RachanaAgarwal-t1e 4 роки тому +5

    Thanks sir i was facing quite difficulty in this topic you explain every detail in all topics you are a legend.

  • @theonlystudy8475
    @theonlystudy8475 4 роки тому +3

    sir u r real hero.. bcz of u i becomed a successfull person..thnkyu so much

  • @prashantabasak4772
    @prashantabasak4772 10 місяців тому

    Sir ye sawal humare half yearly examination mee bhi aaya tha............Bohut halwa laga Angular Momentum aapka video dekhkar..........Thank you vey much sir♥♥♥♥♥♥

  • @ankit_s
    @ankit_s 6 років тому +10

    Did not take care of sign and got wrong answer thanks sir for clearing my misconception in umbrella question

  • @vanamalingupta249
    @vanamalingupta249 6 років тому +4

    Sir your choice of selection of questions for this topic was awesome

  • @meerapradeep4958
    @meerapradeep4958 4 роки тому +5

    Best ever lecture of angular momentum. thank u sir

  • @VishalVerma-eo5mz
    @VishalVerma-eo5mz 8 місяців тому +1

    1:07:23 Umbrella ☔ problem - answer Platform and boy started rotation with 1.33...... rad/sec opposite direction of omega of umbrella ❤🎉

  • @shaikhubaid5349
    @shaikhubaid5349 2 роки тому +9

    This is the best lecture of sir

  • @shiwanggupta6138
    @shiwanggupta6138 4 роки тому +7

    Yehh i finally done adv question thanks a loat sir ji🙏

  • @shrutidubey5368
    @shrutidubey5368 5 років тому +17

    Thanku sir these videos are equally best for bsc and higher entrance exams. Thanku!

  • @ishasaraf7496
    @ishasaraf7496 4 роки тому +110

    HEADPHONES HIGHLY RECOMMENDED OR ELSE SIT IN AN ISOLATED PLACE
    AWAY FROM UR PARENTS
    BEWARE OF HIS SONGS
    😜😜😜😜

    • @atripathi7063
      @atripathi7063 3 роки тому +6

      @Time traveler 2582 so was your time travel sucessfull

    • @usmanm1394
      @usmanm1394 3 роки тому +2

      @Time traveler 2582 LOL😂

    • @lifestough2546
      @lifestough2546 3 роки тому +2

      @Time traveler 2582 lol🤣

    • @psayush2844
      @psayush2844 3 роки тому +1

      @@usmanm1394 Give me some infinite questions

    • @usmanm1394
      @usmanm1394 3 роки тому

      @@psayush2844 (question)^ infinite

  • @yumyum9892
    @yumyum9892 4 роки тому +1

    Sir aapki vedios jitni baar dekhe....mazza utna hi aata hai

  • @Vanshikajain2
    @Vanshikajain2 4 роки тому +3

    Best sir in whole world teaching style 👍 best

  • @SouravKumar--id7ox
    @SouravKumar--id7ox 5 років тому +42

    26:34 koi ni sir aap bhi insaan hi ho 😂😂😂😂 isiliye aapko bhi pyaari laggi ho par aap hamjaise medical students ke liye bhagwaan hi ho sir🙏🙏

  • @sanjurohilla113
    @sanjurohilla113 3 роки тому +27

    Me:- Btao massless gun se mass vali bullets 🤔🧐
    Bullet:- beta jaante nahi ho saare UP mai hamra hi raaj hai
    😂😂

  • @sanika8025
    @sanika8025 4 роки тому +7

    Thank you so much sir for clearing our concepts :)

  • @siddhantgedam5389
    @siddhantgedam5389 4 роки тому +2

    Sir aapko haste dekh bohot achha lagta haii....❤️

  • @VarshaS-wd5dp
    @VarshaS-wd5dp Місяць тому +4

    Any 2025 neet aspirant's here... Stilll his vedios are too fresh like a tendercoconut 🎉❤😅

  • @utkarshtewari5516
    @utkarshtewari5516 6 років тому +5

    Sir you are the best.Thanks for all your efforts

  • @mohammedtauseef1420
    @mohammedtauseef1420 4 роки тому +3

    Sir Neet aspirant ho kr jee advanced ka question jb khud se bnta hai toh next level confidence aata hai❤️💥

    • @exosujunct4932
      @exosujunct4932 4 роки тому

      Brother 2014-15 ke jee advanced ki cut off bhi 165 thi is saal ki cut off 61 thi levl diffirence dekh

    • @mohammedtauseef1420
      @mohammedtauseef1420 4 роки тому

      @@exosujunct4932 Bhai pr itna toh hai ki neet ke questions as compared to jee advanced se bohot basic hote hai...toh agar aap hard cheez kr le rhe ho toh basics toh aaram se kr loge

  • @MajesticR1
    @MajesticR1 Рік тому +3

    1:17:40 If the star shrinked due to internal explosion...Why the mass of the stars doesn't change ?? Every small particle has their own mass, So it should change and there has a very big change in radius too!!

    • @Chupchup-q4r
      @Chupchup-q4r Рік тому

      Why mass will change bro only the shape change na

  • @itskartik870
    @itskartik870 Місяць тому +2

    I am a neet aspirant and doing JEE advanced question just because of Alakh sir ❤❤❤

  • @Channel-dl5ls
    @Channel-dl5ls 7 місяців тому +4

    alakh sir last ke ek minute me bhi ek question kra dete h and baaki utube channels, phle ke 15 min parchar kerte h and last ke 15 min bhi bakwaasbaji me hi nikal dete h
    to ase vo humare 30 min barbaad ker dete h, but alakh sir is best jikne liye humari padhai is priority
    thankyou so much ALAKH SIR

  • @ambrishtiwari8220
    @ambrishtiwari8220 4 роки тому +3

    32:47 what a power sir , such mein kuch gir gaya

  • @satwikbhatnagar
    @satwikbhatnagar 4 роки тому +13

    1:16:36
    The answer for that nebula question is 0.233 seconds, right?

  • @MainakRc
    @MainakRc 2 роки тому +6

    Surely this is one of the best lectures on angular momentum

  • @RaviGupta-zh5fg
    @RaviGupta-zh5fg 2 роки тому +1

    Mai apne liye bol rha hu ki aapke jaisa koi nhi padha skta koi bhi nhi pata hi nhi chalta kon sa que.hard h 😎

  • @neerajgogate5596
    @neerajgogate5596 2 роки тому +2

    thank you so much alakh sir for this amazing lecture. i could the solve the problem of jee advance and i was so happy!! so much love !!

  • @ankushkumarsingh4283
    @ankushkumarsingh4283 2 роки тому +4

    1:17 when the star shrink the mass changes to Mr³/R³ and remaining all is fine

  • @sheero231
    @sheero231 2 роки тому +4

    Mujhe itni khushi ho rhi h... M NEET wali hu or mne JEE advanced k questions solve kiye sahi answer k sath...
    Yay! 😂

  • @pritamsah5246
    @pritamsah5246 4 роки тому +4

    Thanks sir for your wonderful lecture ❤❤❤

  • @aadityaraj1983
    @aadityaraj1983 Рік тому +1

    Your way of teaching and easy explanation has no match. Super awesome.

  • @biswaruppramanik2007
    @biswaruppramanik2007 8 місяців тому +2

    Jee Advanced ka question solve karne par ek different level ka hapiness or confidence ata he🙂

  • @samarjitsarmah2444
    @samarjitsarmah2444 6 років тому +10

    sir classical mechanics ka degrees of freedom topic example ke sath ek video banaiye.

  • @rajbunsha8834
    @rajbunsha8834 5 років тому +9

    Sir when do we have to conserve kinetic energy and when do we have to conserve angular momentum how can we identify

    • @Akashkumar-ot1sw
      @Akashkumar-ot1sw 4 роки тому +3

      We conserve KE in conservative forces and Angular momentum when net ext torque=0

  • @ashish-patel_7898.
    @ashish-patel_7898. 3 роки тому +5

    My mind is blast after seeing the question and sir said ye to halwa sabal tha 😭😭😭😭

  • @mehnat6231
    @mehnat6231 2 роки тому +1

    it is very IMP first to read the defination of something then watch the concept video ,,, you will know the concepts in ease way

  • @shashikantjadhav883
    @shashikantjadhav883 3 роки тому +2

    Sir thank you l am now able to solve jee advance question only because of you🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼

  • @ramkhilonarai1024
    @ramkhilonarai1024 4 роки тому +35

    Sir answer is 2k
    It's my silly mistake i have forgotten to write 1/4 due to exitement so i will improve myself 🙏🙏
    Thanku sir
    Right answer is k/2

  • @anmol5924
    @anmol5924 2 роки тому +3

    If torque about any axis is zero then angular momentum about that axis is coserverd.

  • @jintu5040
    @jintu5040 3 роки тому +4

    Jst loved the questions of this lacture❤️

  • @ankushbhunia22
    @ankushbhunia22 3 роки тому +2

    I didn't able to solve basic level questions of neet level till before...
    After this video, now I am capable to solve advance level questions too😊

  • @mdfarhan7768
    @mdfarhan7768 3 роки тому +1

    Surrrrrrrrrrr...then...sur..sur...sur.. Legend language for physics ❤️❤️❤️❤️❤️❤️😎😎😎

  • @ayushranjan1265
    @ayushranjan1265 4 роки тому +3

    hc Verma answer 42:52=MVR/I+MR^2

  • @kartikeyamondi1129
    @kartikeyamondi1129 4 роки тому +2

    sir i really had a very problem in this. thank u for this video. helped me a lot. thank u sir

  • @bimaldas1643
    @bimaldas1643 4 роки тому +3

    Sir your lecture is very very amazing

  • @Royp92644
    @Royp92644 3 роки тому +1

    This is the first time i have solved question of jee advance. I just can't tell you how energetic I'm feeling now... This is i think 7th lesson maybe...and in the 1st attempt i did it . Initially..i was very suffocating inside me reason i was just wondering that I'm just watching it...and nothing else. But the words from alakh sir might have hit me hard..." Try it for 10min and more " you may take 15 if you need. Just do it...
    I followed it...and the result is stunning.
    Jee advance question 2014 whose answer is = 4rad/sec ( disc angular velocity)

  • @shejalsingh7289
    @shejalsingh7289 4 роки тому

    Sir you are great i am in class 11 and solve jee advance questions correctly by your help solute...to you sir ...meri ek khawaish h ki main aapse milu ....aur I know ye ek na ek din possible jaroor hoga... thanks you sir for this wonderful lecture and I see all your videos and also subscribe your channel... great help sir....👍👍👍👍