Nuclei 04 : Radioactivity - Part 3 : Law Of Radioactive Decay JEE/NEET

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  • Опубликовано: 18 сен 2024
  • Live Classes, Video Lectures, Test Series, Lecturewise notes, topicwise DPP, dynamic Exercise and much more on Physicswallah App.
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    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 RUclips)
    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.
    =========================================================
    For PDF Notes and best Assignments visit @
    Follow us on: Instagram / physicswallah
    Facebook: / physicswallah
    ===========================================================
    Class 12 Chapter 13 II Nuclei 01 :Introduction : Nuclear Structure - Composition and Size JEE/NEET
    • Class 12 Chapter 13 II...
    Nuclei 02 : Radioactivity - Part 1 - Cause of Radioactivity II Why Some Nuclei Are Radioactive ?
    • Nuclei 02 : Radioactiv...
    Nuclei 03 : Radioactivity - Part 2 : Alpha , Beta and Gamma Decay JEE/NEET
    • Nuclei 03 : Radioactiv...
    Nuclei 04 : Radioactivity - Part 3 : Law Of Radioactive Decay JEE/NEET
    • Nuclei 04 : Radioactiv...
    Nuclei 05 : Mass Energy Equivalence II Mass Defect - Binding Energy & Nuclear Stability JEE/NEET
    • Nuclei 05 : Mass Energ...
    Nuclei 06 : Nuclear Fission and Nuclear Reactor JEE/NEET
    • Nuclei 06 : Nuclear Fi...
    Nuclei 07 : Nuclear Fusion - Fusion Reaction in Sun : Difference Between Fission and Fusion JEE/NEET
    • Nuclei 07 : Nuclear Fu...
    Nuclei 08 : Life Cycle Of a Star | Death Of Sun | How BLACK HOLES are Formed !! What is SuperNova ?
    • Nuclei 08 : Life Cycle...

Комментарии • 2,2 тыс.

  • @PhysicsWallah
    @PhysicsWallah  4 года назад +483

    Live Classes, Video Lectures, Test Series, Lecturewise notes, topicwise DPP, dynamic Exercise and much more on Physicswallah App.
    Download the App from Google Playstore ( bit.ly/2SHIPW6 )
    Physicswallah Instagram Handle : instagram.com/physicswallah/
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    LAKSHYA Batch(2020-21)
    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 RUclips)
    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.
    =========================================================
    For PDF Notes and best Assignments visit @ physicswallahalakhpandey.com/
    Follow us on: Instagram instagram.com/physicswallah/
    Facebook: facebook.com/physicswallah
    ===========================================================
    Class 12 Chapter 13 II Nuclei 01 :Introduction : Nuclear Structure - Composition and Size JEE/NEET
    ruclips.net/video/kyYFsXp4kcQ/видео.html
    Nuclei 02 : Radioactivity - Part 1 - Cause of Radioactivity II Why Some Nuclei Are Radioactive ?
    ruclips.net/video/mnonfKTFDXU/видео.html
    Nuclei 03 : Radioactivity - Part 2 : Alpha , Beta and Gamma Decay JEE/NEET
    ruclips.net/video/3sgbHwi_UvA/видео.html
    Nuclei 04 : Radioactivity - Part 3 : Law Of Radioactive Decay JEE/NEET
    ruclips.net/video/bepV9I7p0k0/видео.html
    Nuclei 05 : Mass Energy Equivalence II Mass Defect - Binding Energy & Nuclear Stability JEE/NEET
    ruclips.net/video/X1PjySgn1DA/видео.html
    Nuclei 06 : Nuclear Fission and Nuclear Reactor JEE/NEET
    ruclips.net/video/7QQJsmnSARg/видео.html
    Nuclei 07 : Nuclear Fusion - Fusion Reaction in Sun : Difference Between Fission and Fusion JEE/NEET
    ruclips.net/video/ADQ6656Uew8/видео.html
    Nuclei 08 : Life Cycle Of a Star | Death Of Sun | How BLACK HOLES are Formed !! What is SuperNova ?
    ruclips.net/video/ZZXa0W6D4Dc/видео.html

    • @alpeshshravansinh516
      @alpeshshravansinh516 4 года назад +19

      Sir aap tension na le ham apki help jaroor karenge kyoki aap hamari kar rahe ho. Ham aapke account me chota sa gift and love send kar denge

    • @mdshoaib3563
      @mdshoaib3563 4 года назад +4

      @@alpeshshravansinh516 exactly

    • @diptimayeedas5251
      @diptimayeedas5251 4 года назад +2

      Yesss sirr...🙂🙂

    • @RajVerma-fg8xr
      @RajVerma-fg8xr 4 года назад +5

      @physics wallah sir organic kab poori hogi

    • @bhavyachampaneri
      @bhavyachampaneri 4 года назад +1

      @@alpeshshravansinh516 exactly

  • @CaptainPollux
    @CaptainPollux 8 месяцев назад +23

    Timestamps:
    00:45 - 08:04 - Introduction to Radioactive decay
    08:16 - 15:17 - Rutherford and Soddy law
    16:40 - 22:32 - Logarithmic and exponential form of Rate law
    23:00 - 28:28 - Graph of N(no. of nuclei) v/s time
    28:50 -33:19 - Derivation of Half life of decay*
    33:19 - 36:55 - No. of nuclei left after 'n' half lives
    37:09 - 42:19 - Question 1 (based on above topic)
    42:32 - 48:38 - Question 2
    48:53 - 54:35 - Activity of Radioactive substance*
    54:35 - 56:01 - Graph of R(activity) v/s time
    56:04 - 58:27 - unit of Activity
    58:37 - 01:00:59 - Question 3
    01:01:08 - 01:04:07 - Question 4
    01:04:15 - 01:07:30 - Mean value of Decay (T)

    • @MohitKumar-vl8fs
      @MohitKumar-vl8fs 8 месяцев назад

      Thank bro

    • @CaptainPollux
      @CaptainPollux 8 месяцев назад +1

      there already one time stamp there down. But it takes time to find so I made one. Np welcome. @@MohitKumar-vl8fs

  • @saumyabalaverma2606
    @saumyabalaverma2606 4 года назад +530

    Best teacher I have ever seen in my life is Alakh sir( physics wallah).

  • @laughwallah6195
    @laughwallah6195 4 года назад +590

    Other youtubers : crying for like share subscribe
    Physics Wallah : baccho padai krte rho ,all the very best 😎🧡🥰
    thaths why our sir is Super Hero 🤘👊👍

    • @navinkrSTAR
      @navinkrSTAR 4 года назад +6

      For painting notes go to my channel

    • @user-id5zo8ud2v
      @user-id5zo8ud2v 4 года назад +5

      Hello fellow otaku

    • @ramch5095
      @ramch5095 4 года назад +6

      For us magic - physics
      Magician - Physics Wallah

    • @shikamarunara1348
      @shikamarunara1348 4 года назад +11

      My school teacher's physics : Troublesome
      Our Physics Wallah's
      physics : Awesome

    • @xyz-ip9hr
      @xyz-ip9hr 4 года назад

      @@user-id5zo8ud2v hello

  • @jacobblack2544
    @jacobblack2544 4 года назад +603

    Sir created this Channel on 27th Jan 2014 and today is 27th Jan 2020
    so today is the birthday of this channel
    happy birthday to the fam

    • @kashnihinduja4235
      @kashnihinduja4235 4 года назад +15

      27th jan is my birthday too..lol XDXD

    • @aadarshraghuwanshi7022
      @aadarshraghuwanshi7022 4 года назад +13

      28th, actually

    • @pkvzone
      @pkvzone 3 года назад +1

      Hii guys can you suscribe
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    • @997_99
      @997_99 3 года назад +1

      @@pkvzone why ?

    • @musaibbilal9051
      @musaibbilal9051 3 года назад +2

      27th Jan is my bday too.
      Lol 😂🖐️🖐️🖐️

  • @101jeelpatel5
    @101jeelpatel5 4 года назад +108

    First time in India who teaches us both physics and chemistry.thank u sir .... keep it u💪💪💪💪💪

    • @pkvzone
      @pkvzone 3 года назад

      Hii guys can you suscribe
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  • @soumyaranjan410
    @soumyaranjan410 4 года назад +232

    My physics notes which I make from sir's videos was seen by my coaching teacher and he was literally surprised to see that "kiske notes hein yeh.. koi IIT Professor se padhte ho kya " and i was like jisse v padhta hun wo innn sab IIT professor se kaafi better hain..The best ..#Pwian🥳

    • @name8166
      @name8166 4 года назад +29

      😂😂 IIT Professors 11th aur 12th ka course karate hai IIT me??

    • @mintusharma1768
      @mintusharma1768 4 года назад +5

      Yeah they do teach
      I stay in IIT kgp and here toppers study from them only

    • @apzn131
      @apzn131 3 года назад +10

      Oh God!! Kaha ka gadha hai bhai tu?
      Ye jee main level bhi touch nahi karta aur tum iit ki baat karte ho..
      Ye bewkuf banata hai emotional bate karke aur tu gadha ban jata hai.
      Iit ke professors se compare kar rahe ho😄😄😄😄

    • @003rupeshkumar4
      @003rupeshkumar4 3 года назад +19

      @@apzn131 bhaii tu noobda hAi
      pahle video dhang se sun🤣

    • @pkvzone
      @pkvzone 3 года назад +1

      Hii guys can you suscribe
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      Best of luck NEET/jee 2021
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      🙏🙏

  • @hiteshgupta7684
    @hiteshgupta7684 4 года назад +522

    Someone asked me, what is more clear then mirror...
    I turned and replied, my concept after watching physics wallah videos...

    • @nishkrsh_
      @nishkrsh_ 4 года назад +13

      Logic 😶

    • @hiteshgupta7684
      @hiteshgupta7684 4 года назад +4

      Sahi kaha na bro

    • @n1tr1x8
      @n1tr1x8 4 года назад +2

      @@hiteshgupta7684 ekdam bhai

    • @kaanuveneekannada
      @kaanuveneekannada 4 года назад +2

      Kya baat hai 😅👌👌

    • @hiteshgupta7684
      @hiteshgupta7684 4 года назад +9

      Iss comment ko itna like kardo ki sir ek baari ko dekh kar hass de 😊😊

  • @picklerick8844
    @picklerick8844 4 года назад +57

    In the first question, we can also use the fact that 10% nuclei decayed in 1 second, so in the next second 10% of the remaining nuclei will decay. So nuclei remaining after 2 seconds = 90 - (10% of 90) = 81 nuclei.

    • @ishanixdd9706
      @ishanixdd9706 4 года назад +4

      Thank you for this trick❤

    • @Remy4556
      @Remy4556 2 года назад +1

      Thankyou ❤

    • @aditiwagh7238
      @aditiwagh7238 Год назад +1

      Yes bro
      I was also used it

    • @awmdanger9677
      @awmdanger9677 11 месяцев назад +1

      Thanks sir/ma'am!

    • @tajirtbnmh542
      @tajirtbnmh542 11 месяцев назад

      This question was taken from DC Pandey
      And you are explaining the answer from DC pandey

  • @pradipsahu2275
    @pradipsahu2275 4 года назад +29

    25:27 λ in terms of time: reciprocal of time during which 63.2% nuclei of initial amount has been degraded
    t½(half life) 31:08
    Different units of activity 58:00
    Mean life 1:06:07

  • @_prabhash_kumar
    @_prabhash_kumar 2 года назад +52

    Studying nuclear physics after my 1st attempt, I had left this chapter literally from modern phy but after watching the video of sir, this chapter has become crystal clear now. Tqsm sir🙏🤗

  • @laughwallah6195
    @laughwallah6195 4 года назад +227

    for us
    The art : PHYSICS
    The artist : PHYSICS Wallah 😎🧡🥰

    • @laughwallah6195
      @laughwallah6195 4 года назад +9

      to bhai tu kr de sub.kabhi to hoga 3k😅

    • @Devpandey2006
      @Devpandey2006 4 года назад +2

      🤣😂🤣🤣

    • @n1tr1x8
      @n1tr1x8 4 года назад +3

      Hope u get 3k subs😅

    • @manojvatvani6553
      @manojvatvani6553 4 года назад +1

      🤣🤣🤣

    • @apzn131
      @apzn131 3 года назад +2

      Art- students ko bewkuf banana
      Artist - physicswallah
      Example- Tu

  • @drmdzaidwetreatheheals8366
    @drmdzaidwetreatheheals8366 4 года назад +145

    Alakh pandey zindabad
    Agreed this
    Hello bacho kya hal chal
    ❤❤❤❤❤
    💯💯💯💯💯

  • @SuccessWaiting
    @SuccessWaiting 4 года назад +160

    *जो अपने कदमों के काबिलियत*
    *पर विश्वास करते हैं अक्सर वो ही*
    *मंजिल तक पहुँचते है ।।*

    • @nishayadav1398
      @nishayadav1398 4 года назад +1

      yes sir

    • @761ritika8
      @761ritika8 4 года назад +1

      Nice one

    • @anjalisorout2630
      @anjalisorout2630 4 года назад +2

      Tumhari likhi Hui shayari Maine ek din class m teacher ki partiality pr bol do😂😂😂😙😙😙 aur phir Kya tha... Bss sir chillaye mere uper... Ki y Kya battameji hh ... Class se bhar niklo abhi ki abhi😭😭😭😭😭😭💗💗 bss phir Kya tha.... Principal sir k pass le Jane wale the mujhe ...... But Mera luck accha tha... Sir aaye hi nhi the😆😆😅😅😙😙😙😙😇😇 Puri school life m pehli bhaar class se bhar nikli .... Vo bhi 12 mmm 😱😱😱

    • @anjalisorout2630
      @anjalisorout2630 4 года назад +3

      @@user-bk3zx1qr3q jitne ka asli mja jb hhh jb sb aapk harne ka intzar kr rhe ho 😂😂😂😂😂😂😂😂... Aksr vo sir mujhse jlte h na...🔥🔥🔥. Vo nhi chahte ki mere unke favorite student se jyada marks aaye👍👍👍👍👍

  • @Ritesshx
    @Ritesshx 4 года назад +55

    Pure desh me halla hai.
    Sabse accha physics wallah hai.

    • @pkvzone
      @pkvzone 3 года назад

      Hii guys can you suscribe
      PKV NEWS?
      Best of luck NEET/jee 2021
      Thank u for reading.
      🙏🙏🙏
      🙏🙏

  • @nitheskumar1441
    @nitheskumar1441 2 года назад +44

    00:00:45 - 00:08:04 - Introduction to Radioactive decay
    00:08:16 - 00:15:17 - Rutherford and soddy law
    00:16:40 - 00:22:32 - Logarithmic and exponential form of Rate law
    00:23:00 - 00:28:28 - Graph of N(no. of nuclei) v/s time
    00:28:50 - 00:33:19 - Derivation of Half life of decay*
    00:33:19 - 00:36:55 - No. of nuclei left after 'n' half lives
    00:37:09 - 00:42:19 - Question 1 (based on above topic)
    00:42:32 - 00:48:38 - Question 2
    00:48:53 - 00:54:35 - Activity of Radioactive substance*
    00:54:35 - 00:56:01 - Graph of R(activity) v/s time
    00:56:04 - 00:58:27 - unit of Activity
    00:58:37 - 01:00:59 - Question 3
    01:01:08 - 01:04:07 - Question 4
    01:04:15 - 01:07:30 - Mean value of Decay (T)

    • @inzamamulahmed6059
      @inzamamulahmed6059 Год назад

      🙏❤️

    • @swadhinrout2110
      @swadhinrout2110 Год назад

      Good boy

    • @student300
      @student300 Год назад

      I think it will be more profitable if anyone watches the full video . Specially the old lectures of Alakhsir

  • @ravinderkashyap9697
    @ravinderkashyap9697 4 года назад +93

    😉❤️Phyiscs Wallah😍❤️ is only Teacher Who teaches Physics and Chemistry in Simplest or Easiest Way Which is helpful to Every Jee or NEET aspirant ❤️❤️❤️😍😍👈
    Kyo guys.....

    • @navinkrSTAR
      @navinkrSTAR 4 года назад

      For painting notes go to my channel and

    • @jatinmantri4845
      @jatinmantri4845 4 года назад +1

      Check out unacademy
      Namo kaul is the best phy teacher of India

    • @ravinderkashyap9697
      @ravinderkashyap9697 4 года назад

      @@jatinmantri4845 yes
      Namo kaul is also best

    • @ShivamJha00
      @ShivamJha00 4 года назад +1

      @@ravinderkashyap9697 "also best" lol

    • @futureexplorer9607
      @futureexplorer9607 4 года назад +3

      @@jatinmantri4845 you are right but alakh sir teaches in most simplest and easiest way!
      also sir ko pata ha ki baccho ko kaha difficulty aati ha and wo cheeze repeat krte ha!
      most imortant like ,share and subscribe aisi chheze unke dictionary me nahi ha,most important saara content with noooooo money!!!!!!!!!!!!

  • @sarvobio
    @sarvobio 4 года назад +30

    Perfect teaching style comparison to other teachers. Alakh sir best faculty of physics. And God of physics

  • @user-gj6lg4jo5d
    @user-gj6lg4jo5d 3 года назад +66

    Fact :
    After learning chapter from sir I feel like now I m expert in physics 😂
    Thanks to God of physics ❤️

  • @henryvictor4195
    @henryvictor4195 4 года назад +256

    Semiconductor Kara do sir ... Eagerly waiting for it..❤️

  • @deshiks6906
    @deshiks6906 4 года назад +21

    One of the great sirs I had ever seen
    He is my favourite physics sir who teaches in best way
    I'm inspired by you sir
    I will never for you in my life sir

    • @pkvzone
      @pkvzone 3 года назад

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  • @swarnavadey596
    @swarnavadey596 4 года назад +134

    We are so lucky to have him here in this platform ..

    • @pkvzone
      @pkvzone 3 года назад +1

      Hii guys can you suscribe
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    • @krishshah8834
      @krishshah8834 3 года назад

      @@pkvzone no

    • @armanlasker4037
      @armanlasker4037 3 года назад

      Tu kinte saal ka budha hain

    • @tanukhandelwal2601
      @tanukhandelwal2601 2 года назад

      Hey plz tell me bhaiya 1.443 kaise aaya

    • @FF-ro1ye
      @FF-ro1ye 10 месяцев назад

      Blaaaaaaaaaah blaaaaaaaaaah

  • @shivamrai0207
    @shivamrai0207 4 года назад +40

    He is only RUclipsr who never say to subscribe his channel and share and like his videos but we do it without hesitation because We love u sir keep going 💟❤️

  • @tarun_vishwey
    @tarun_vishwey 2 года назад +23

    Its has for the first time I guess the concepts of chemistry are helping me in understanding physics otherwise it always been opposite 😵😵👍👍

  • @shivampremium4673
    @shivampremium4673 3 года назад +18

    *The einsteinium had formed when some uranium atoms had captured several neutrons and gone through a series of capture and decay steps resulting in einsteinium-253, which has a half-life of 20.5 day*

  • @preetidevi3464
    @preetidevi3464 4 года назад +34

    Thanks sir because of you I scored 91.47 percentile in jee mains 2020

  • @jaandeka6177
    @jaandeka6177 4 года назад +37

    Our GURU is PHYSICSWALLAH ❤❤❤

  • @scientistfantastic
    @scientistfantastic 4 года назад +28

    No views
    158 likes
    That's the power of Physics Wallah 💪💪💪💪

  • @tarunkumarbehera6226
    @tarunkumarbehera6226 4 года назад +34

    Alakh Sir- "The God of Physics and Chemistry!"
    Love you, sir... #Respect

    • @pkvzone
      @pkvzone 3 года назад

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      PKV NEWS?
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  • @Aksharma.10
    @Aksharma.10 2 года назад +12

    this is legend , who's born to teach us , this happens once in millennium. I'm proud that I'm the student of their.

    • @FF-ro1ye
      @FF-ro1ye 10 месяцев назад

      You know the term legend used on which person.... Better go the school🎒📚 and have some fuc....... ing class without your f.... Uc....... Friends👭👬

  • @pradumngupta3328
    @pradumngupta3328 4 года назад +14

    Aaiye aapka intejar tha 😂😂........
    Love you so much sir ji😘😘😘😘😘
    Jldi se course complete kr dijiye sir...please

  • @mehakabhaypal3550
    @mehakabhaypal3550 4 года назад +15

    I am very very pleased to study at your channel.Ithink you are the best teacher of physics.I will strongly recommed your channel to all my friends .

  • @nishantjt
    @nishantjt 4 года назад +34

    You are about a mole times better than my chem teacher.

  • @sanwalisinha7000
    @sanwalisinha7000 4 года назад +7

    After school and coaching don't clear this topic now in 1 hour this topic completely understand hats off to you sir

  • @FunTechz24
    @FunTechz24 Год назад +13

    Sir ki webseries dekhne ke bad ye sare lecture ke peeche ki mehnat samajh aa rhi h ❤️❤️ Gem Of PW

  • @alishasheikh9631
    @alishasheikh9631 4 года назад +11

    Best teacher teach from the heart💞 not from the book 📕

  • @killer6327
    @killer6327 4 года назад +13

    Thank you for supporting us in this bad times

    • @DeepakTripathi624
      @DeepakTripathi624 4 года назад

      Yes

    • @nishkrsh_
      @nishkrsh_ 4 года назад

      Bad times???

    • @killer6327
      @killer6327 4 года назад

      @@nishkrsh_ bad times means it just about a month when board exam Will start and still we are struggling in some chapters of physics

  • @vikaspal4955
    @vikaspal4955 4 года назад +806

    Semiconductor ka intezar kis kis ko h♥️♥️
    ♥️♥️

  • @rabeyakhatun7991
    @rabeyakhatun7991 4 года назад +20

    Dear Alakh sir,
    I'm from Bangladesh . I've watched maximum videos as I can.Your videos are very much helpful to me.after watching your videos I've achieved a prize in the physics olympiad.It will be more pleasant to me if you kindly make videos about diode and transistor related numericals. Please reply to my desire as soon as possible.

  • @aditisri8470
    @aditisri8470 4 года назад +17

    Sir u are perhaps the best teacher of physics and chemistry in the whole world bt sir pls bura mat manna yeh kisko inorganic pakda diya sir isse achaa toh aap mat daalo inorganic k lectures yeh kya chal raha 27 October se aaj tak coordination nahi khatam hua plss do look into itt i m really very very serious aapne bhi agar unke last lecture k comment padhe honge toh aapko patah hoga kuch karo sirr plsss 🙏🙏🙏 yeh yt ka bestt channel hai pls don't spoil it with such videos aapko kharab comments k alawa kuch nhi milega

  • @dr.sunilkumar9524
    @dr.sunilkumar9524 4 года назад +4

    Sir aab to junior's ke liye ek hi advice hain follow the uper wallah =physics wallah 100% correct formula

  • @anirbanpandit680
    @anirbanpandit680 Год назад +5

    I'm dropping the date so i can find how useful these old golds😌🔥
    24/03/23

  • @ummerukshar9001
    @ummerukshar9001 2 года назад +11

    It's june 2022.Still watching my all time favourite teacher's lecture ❤️

  • @amitchoudhary3277
    @amitchoudhary3277 3 года назад +2

    Q. 1. Calculate the half life of the radioisotope if it's mass decrease from 24g to 6g over a period of 6 day's
    Please answer this question

  • @wthharis3075
    @wthharis3075 4 года назад +7

    before learning from this channel i always thing that physics is not my cup of tea but know i am in love with it because of you thanku so much for teaching phy
    in such a great way

  • @laughwallah6195
    @laughwallah6195 4 года назад +68

    The art : PHYSICS
    The artist : PHYSICS Wallah 😎🧡🥰

    • @sumit4539
      @sumit4539 4 года назад +4

      Yes bro Completely true

    • @KhushiSharma-bg5kw
      @KhushiSharma-bg5kw 3 года назад +1

      Wtf? Ya know that art is CREATED by an artist, he didn't create physics. This template isn't even suitable here.

    • @KhushiSharma-bg5kw
      @KhushiSharma-bg5kw 3 года назад

      @@laughwallah6195 I'm saying he didn't create physics, he teaches it. This template isn't valid here.

    • @laughwallah6195
      @laughwallah6195 3 года назад

      @@KhushiSharma-bg5kw see for us the art of learning physics and understanding it is created by the artist physics wallah
      is anything is need to write now 🙄

    • @laughwallah6195
      @laughwallah6195 3 года назад

      @@KhushiSharma-bg5kw our armed force says many times , if you learned any new good thing from someone then the someone is artist for you even it is your known person or even any enemy 🙂

  • @jaandeka6177
    @jaandeka6177 4 года назад +25

    The greatest💪💪 teacher ever born on this planet🌍 😍😍

  • @deepak_joshi_the_conqurer_
    @deepak_joshi_the_conqurer_ 4 года назад +39

    41:58💛... Cutest expressions of Alakh sir!!! BTW I remembered that😆

    • @pkvzone
      @pkvzone 3 года назад

      Hii guys can you suscribe
      PKV NEWS?
      Best of luck NEET/jee 2021
      Thank u for reading.
      🙏🙏🙏
      🙏🙏

    • @dhrutilataparida4390
      @dhrutilataparida4390 3 года назад +1

      really funniest expression 😂😂😂😂😂😂😂😂😂😍😍😍🥰🥰🙃

  • @decodevivo9978
    @decodevivo9978 2 года назад +35

    I'm watching it exactly 2 years after this lec. Was uploaded 🙃

  • @SurajKumar-kx8dn
    @SurajKumar-kx8dn 4 года назад +12

    when your notification comes that moment is very pleasure to me
    Thanks sir
    Love from Bihar

  • @shortsr9673
    @shortsr9673 4 года назад +56

    Sir I am waiting for semiconductor

  • @tanmaykantmishra1589
    @tanmaykantmishra1589 4 года назад +7

    Sir, I have scored 82.2% marks in 11 without any coaching .......just because of your great effort sir.I was able to do this....thank you sir...🙂😊😊

  • @abhikiivines9399
    @abhikiivines9399 4 года назад +46

    How else love the line hello bacho like here 😂😂😂

  • @60_chaudharyparvati38
    @60_chaudharyparvati38 11 месяцев назад +7

    Sir you deserve the nobel prize

    • @armanc93
      @armanc93 9 месяцев назад

      Haaa baat karte pm se iske bare me

    • @rockrohan5105
      @rockrohan5105 8 месяцев назад

      ​@@armanc93ha vaii kar ❤️,pm toh tere ristedar he

  • @shikamarunara1348
    @shikamarunara1348 4 года назад +17

    My school teacher's physics : Troublesome
    Our Physics Wallah's
    physics : Awesome

  • @krantikadam5829
    @krantikadam5829 4 года назад +5

    Thank you sir I am very grateful to have physics and chemistry teacher like you. Thank you for making physics interesting for me.

  • @gauravahuja7803
    @gauravahuja7803 4 года назад +7

    Sir, aapki wajah se maine 1st numerical 39:05 ko khud apne tarike se kiya. Aapne motivate kiya ki khud se karo maine kra.
    My way of doing this numerical ☺️☺️😎😎
    At t=1sec
    N=90, No =100
    N=No e^-lambda t
    90 = 100 e^-lamda
    e^-lambda = 9/10
    1/e^lamda = 9/10
    e^lamda = 10/9
    Now,
    At t=2sec
    N=?, No=100
    N=No e^-2lambda
    N = 100* 1/e^(lamda)^2
    N= 100*1/(10/9)^2
    N= 81*100/100
    N=81
    Sir, maine apki numerical solve kaise kre vo video dekhi thi
    🎉 🎇 🎆
    Uski vajah se main ye kr paya.

    • @pennywisethedancingclown9963
      @pennywisethedancingclown9963 4 года назад +2

      Ab tuje noble prize milega

    • @at52
      @at52 3 года назад +2

      bhai padmashree ke liye tera naam nominate krwate hai ... kya bolta hai?

  • @IMTIYANO
    @IMTIYANO 4 года назад +4

    was waiting or you sir, and at last you are here with a new video. THank you sir, thankyou so much. If you agree hit like................

  • @ripanpaul2010
    @ripanpaul2010 2 года назад +10

    Excellent accuracy and talent in teaching ever seen ❤. Pw op(always) 👏

  • @DrSAUD-gp1re
    @DrSAUD-gp1re 5 месяцев назад +2

    Congrats 11.9M subscribers.😊

  • @VikasSharma-jb2ro
    @VikasSharma-jb2ro 2 года назад +7

    alakh sir is time aapne socha tha ki aap 8000 ki company khadi kar denge , mai bhi aaunga sir isme contribute karne , lov you , 10th top , 11th top, 12th top , bus ab jee bhi karvado maje ho jayenge sir , aap ko to sir bhi ni bolunga , mai sochtha ths bachpan se ki ye banda mera bhai hai , gjab hi pdhata hai , mai bhi aaunga yhi as an best teacher

  • @ashoknegi8090
    @ashoknegi8090 4 года назад +6

    Sir you teach so good and smoothly,
    You are pure gold🙏🙏🙏💛

  • @devpanwar8796
    @devpanwar8796 4 года назад +20

    Sir it gives relief me from tension

    • @navinkrSTAR
      @navinkrSTAR 4 года назад

      For painting notes go to my channel and

  • @dhruvsagathiya4003
    @dhruvsagathiya4003 4 года назад +11

    Hi sir... this is Dhruv sagathiya very much glad to have all urs vedio which helps me at the best in my neet preparation i have not joined to any coaching, self preparing along with all urs vedio lectures for phy n che.....
    Sir a humble request to you ,to start semiconductor part which is most frequently asked in entrance and i dont think anyone can ever explains best as you can ...also helped u in ur journey... thanks a lot sir for all urs efforts.......

  • @swatimandavkar2998
    @swatimandavkar2998 6 месяцев назад +3

    😮woww sir you are very nice singer 15:17

  • @India-qh8qn
    @India-qh8qn 4 года назад +25

    I just read semiconductor from text . Tough to understand from book after totally relying upon u

    • @godson200
      @godson200 4 года назад +2

      Ek baar ke liye atoms aur dual nature fir bhi padh lenge ncert se.. Lekin semiconductor nahi hoga humse

    • @pkvzone
      @pkvzone 3 года назад

      Hii guys can you suscribe
      PKV NEWS?
      Best of luck NEET/jee 2021
      Thank u for reading.
      🙏🙏🙏
      🙏🙏

  • @soyabKhan-xk7sd
    @soyabKhan-xk7sd 4 года назад +4

    Thnk u soo much sir
    Mene ye chp coaching me padha but que. Hi bn nhi rhe the
    Fir utube me aapka search kia but us tym.aapne upload nhi kiye the lectures
    So me unacademy me padhana strt kia but usme sir baap re chup hi nhi rehete faltu ki baatein lyk share subscribe..n all tht..not Efficiently they teach
    Uske baad bhi que nhi bane
    Thn mene decide kia alakh sir.ke lectures aaye ge tb ye chp. Open karuga
    N finally.mere sara clear ho gya..
    I luv u sooo.much sir
    ....Allah bless u...i alwys remind u in my Duas..😍😘

  • @farhanarshad4119
    @farhanarshad4119 4 года назад +3

    Sir , please complete aldehyde and ketone chapter in chemistry , please !!!

  • @niwasbaruah5899
    @niwasbaruah5899 4 года назад +29

    How many of you learning from our physicwallah sir during lockdown
    Pls like here
    👍

  • @AyushGupta-km5iv
    @AyushGupta-km5iv 3 года назад +2

    Sir maaza aagaya
    Aache se samjh aagaya sir thanks sir
    Yar ye kaun log hai jo be matlb ke dislike karke chale jaye hain
    Unhe pap lagega pakka physics ki aatma unhe hamesa sataye gi

  • @HasanulHussain
    @HasanulHussain 4 года назад +25

    This video sound quality is quite well than previous.The sound was very low in previous video

  • @shuvamroy5059
    @shuvamroy5059 4 года назад +5

    Truly waiting for this lecture
    Thank you sir....

  • @anshushukla4948
    @anshushukla4948 4 года назад +7

    Tysm sir you r like god to everyone...🙏🙏
    Kaun kaun notification milte hi direct comment section me aa gaye just to comment
    Like ifu all love his teaching style....

  • @ibnadam9689
    @ibnadam9689 Год назад +4

    Appreciating from heaven🌹

  • @ritikakumari1825
    @ritikakumari1825 Год назад +5

    Beautiful explanation ❤❤

  • @kiran8862
    @kiran8862 4 года назад +56

    Sir *mic* ka *sound* nahi aa raha ... Voice bhaut..*Kam aa rahi* phone me
    *Guys agree* ?? Plz *like* so that sir can see

  • @egomark8224
    @egomark8224 4 года назад +6

    Sir most respectfully YOU ARE GREAT AND I'M VERY GRATEFUL FOR TEACHING US. THANKS A LOT SIR.

  • @mumtazhussainmumtazhussain1233
    @mumtazhussainmumtazhussain1233 Год назад +6

    Love ❤you sir from Pakistan ❤❤

  • @kanhaiyabagul7008
    @kanhaiyabagul7008 2 года назад +4

    Good Night sir socha ki so jau pr sapne pure karne hai sao kaise aapke bina nind nahi aati
    Padhane ke baad jo nind aati hai na uska sukun aalg hota hai sir 🥺🥺. Pr aabi Mai soya nahi hu lecture aatend kartehi so jaun ga

  • @amanvibing
    @amanvibing 4 года назад +8

    Thanks for everything you've given to us sir

  • @neerajjha_5313
    @neerajjha_5313 4 года назад +4

    Thank you for your this free and excellent education support for us

  • @mahveermahveer9505
    @mahveermahveer9505 4 года назад +10

    When u are too early and not have words to say anything🤗🤗🤗

  • @Dr.Abhinav_
    @Dr.Abhinav_ 10 месяцев назад +7

    This topic is deleted from boards syllabus 2023-24

  • @dolly_here4915
    @dolly_here4915 Год назад +1

    Sir , i literally salute u

  • @sagarkumarjena5158
    @sagarkumarjena5158 2 года назад +3

    The lovable guy 's dedication
    Forever helpful for science students
    Love u too my ideal legend 🙏🙏

  • @pranjalpatel8160
    @pranjalpatel8160 4 года назад +5

    Physics wallah ka jalwa!!!🔥🔥🔥🔥

  • @mannatnamotra3896
    @mannatnamotra3896 4 года назад +4

    Jishe dudthi meri nazar
    Jishe dudu me har jaga
    Wo teacher ha kaha
    Wo hai jaha hamare pyarre alakh sir 🤗🤗💕💕🙏🙏💕💕🤗🤗

  • @anilgautam1434
    @anilgautam1434 2 года назад +4

    Education have no boundry

  • @abhishekpianist4612
    @abhishekpianist4612 2 года назад +6

    In India, it's nearly impossible that traffic police maintains a monthly record of most vehicles from which direction😆😆
    Note - For entertainment purpose only 😁
    Padhai karte rahe all the very best✌✌

  • @factezz3326
    @factezz3326 2 года назад +2

    One of the bes teachers of physics in world at current time 👍👍👍👍

  • @sailakshman4772
    @sailakshman4772 3 года назад +5

    Thank you sir, my chemical kinetics chapter revision also completed parallelly.❤❤

  • @mehulkapadia2029
    @mehulkapadia2029 4 года назад +5

    Sir thank you for chemistry ....Mai dropper hu I scored 26 percentile in chem last year and this year I scored 90 percentile thank you so much

    • @kaanuveneekannada
      @kaanuveneekannada 4 года назад +1

      Were physical and organic chemistry questions directly from Sir' s notes or others

    • @Harsh_kr_
      @Harsh_kr_ 4 года назад +1

      Congrats bro

  • @magnus6718
    @magnus6718 4 года назад +7

    Waiting for part 5
    Sir is the best physics teacher i have seen ❤😄 from manipur

  • @Itssriworld
    @Itssriworld Год назад +2

    really your class is super for me it is covering both board exam and My NEET-2023.

  • @tejashribhore1365
    @tejashribhore1365 4 года назад +6

    Happy Gurupournima Sir🙏🙏... Thanks for making Physics easier 😋😋

  • @gksagar5109
    @gksagar5109 4 года назад +27

    Unacademy has 2k view in one week
    Alakh sir has 9 k views in one hour

  • @Sikarwar0020
    @Sikarwar0020 4 года назад +10

    Sir Kya explanation krte ho... Thanks sir for thinking about students future 😊

    • @Harsh_kr_
      @Harsh_kr_ 4 года назад +1

      Students ki future nhi apna future ab jyda dekhte hai

  • @abhijitmondaldme4019
    @abhijitmondaldme4019 4 года назад +4

    Sir i am from West Bengal. Mujha apki padana style bohod a66a lagtaha.mera life ma dekha sabsa a66a teacher 👌👌👌👌

  • @avni8726
    @avni8726 Год назад +2

    You are the world's best teacher ☺️☺️

  • @No.Copyright.No.content
    @No.Copyright.No.content Год назад +3

    This man makes everything easy yrr☺️