Class 12 chap 11 II Dual Nature Of Radiation and Matter 01 : Photoelectric Effect - Part 1 JEE/NEET

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  • Опубліковано 17 гру 2019
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    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.
    =========================================================
    For PDF Notes and best Assignments visit @
    Follow us on: Instagram / physicswallah
    Facebook: / physicswallah
    ===========================================================
    Class 12 chap 11 II Dual Nature Of Radiation and Matter 01 : Photoelectric Effect - Part 1 JEE/NEET
    • Class 12 chap 11 II Du...
    Dual Nature Of Radiation and Matter 02 II PhotoElectric Effect - PART 2 -Stopping Potential JEE/NEET
    • Dual Nature Of Radiati...
    Dual Nature Of Radiation and Matter 03 II Wave Nature Of Matter - De Broglie Hypothesis JEE/NEET
    • Dual Nature Of Radiati...
    Dual Nature Of Radiation and Matter 04 II Davisson and Germer Experiment with Bragg's Law JEE/NEET
    • Dual Nature Of Radiati...

КОМЕНТАРІ • 7 тис.

  • @PhysicsWallah
    @PhysicsWallah  4 роки тому +1548

    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 )
    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 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.
    =========================================================
    For PDF Notes and best Assignments visit @ physicswallahalakhpandey.com/
    Follow us on: Instagram instagram.com/physicswallah/
    Facebook: facebook.com/physicswallah
    ===========================================================
    Class 12 chap 11 II Dual Nature Of Radiation and Matter 01 : Photoelectric Effect - Part 1 JEE/NEET
    ua-cam.com/video/2JYSVsXV3Ac/v-deo.html
    Dual Nature Of Radiation and Matter 02 II PhotoElectric Effect - PART 2 -Stopping Potential JEE/NEET
    ua-cam.com/video/Ui6m8GjNbD0/v-deo.html
    Dual Nature Of Radiation and Matter 03 II Wave Nature Of Matter - De Broglie Hypothesis JEE/NEET
    ua-cam.com/video/B-Ngv7bfqoI/v-deo.html
    Dual Nature Of Radiation and Matter 04 II Davisson and Germer Experiment with Bragg's Law JEE/NEET
    ua-cam.com/video/hFzWmXTeH70/v-deo.html

    • @VIKASPANDEY-hq7ci
      @VIKASPANDEY-hq7ci 4 роки тому +30

      Sir voice thoda kam aa raha hai earphone me.
      Aap ke video dekhne per
      Kyu?

    • @challengex8401
      @challengex8401 4 роки тому +6

      #Mudit was here..

    • @atcraftcorner5521
      @atcraftcorner5521 4 роки тому +9

      Sir Kisi particular light ki wave length fixed hoti hain toh us particular light ki energy vhi fixed hain ,E=hc/lamda ..aur Apne Kaha hain sab photon ki energy same hain change Nahi hoti..toh radiation change hone main agar energy change ho rahi Hain toh us wakt photon ki energy same rahe gi ya change ho jaye gi ??

    • @MIM-wh5rw
      @MIM-wh5rw 4 роки тому +2

      Physics Wallah - Alakh Pandey it

    • @vinayraja8648
      @vinayraja8648 4 роки тому +4

      Sir plz semiconductor boards layk hi करा dijiye plz sir plz.... Hmlog aapke bharose the plz sir plz bss boards layk...

  • @studypoint.5853
    @studypoint.5853 Рік тому +3005

    Batch 2024 it's time for attendance 👇👇👇👇

  • @mahek6008
    @mahek6008 3 роки тому +2382

    Few lines that we never gonna forget in our whole life-
    1.Helllllooooo bachoooooooo
    2.kya haal chal?? Badhiya ekdam
    3.Yes, my name is alakh Pandey and this is your cute sa beautiful sa channel- physics wallah
    4.Choohe khana chod de aur padhai pe dhyan de
    5.padhai karte rahiye, all the very best

  • @sangeetamishra1562
    @sangeetamishra1562 7 місяців тому +113

    Alakh sir starting new batches for class 12 th students
    while me- watching alakh sir 's old videos..
    ❤love uhh sir ..

  • @Rahul_Raj__
    @Rahul_Raj__ 2 роки тому +18

    Sachhi bta rha hu sir aap aese single teacher hai jiske 1.5hr ke lecture dekh krr v bore nhii hota hu.... Wrna other teacher ke session me mujhe haafi aane lgti hai uske baad neend..... u r awesome sir ❤️❤️

  • @arsalanmuzafar6569
    @arsalanmuzafar6569 4 роки тому +1961

    In quaratine 🤯 it felt really good to learn from such a talented man ❗

    • @rajeshkatiyar5720
      @rajeshkatiyar5720 4 роки тому +19

      r u a dropper??

    • @ajaybaghel2655
      @ajaybaghel2655 4 роки тому +20

      Quarantine 🤔🤔

    • @manjusingh8483
      @manjusingh8483 4 роки тому +28

      Yup after all I m a hostler so I have to go to hostel and then I. M not able to study from alakh pandey sir becoz phone is not allowed there so it's a gre8 feeling and chance to study from such a interesting and best teacher

    • @babusonamolla1045
      @babusonamolla1045 4 роки тому +3

      @@manjusingh8483 which hostel you reading?

    • @manjusingh8483
      @manjusingh8483 4 роки тому +5

      @@babusonamolla1045 I m not manju singh I m her daughter studying in bhagwan our Sunbeam Varanasi but why

  • @vrnilogalrcr8762
    @vrnilogalrcr8762 4 роки тому +912

    The real hero of India....!
    !!.. Giving free education to the society..... Hatsoff sir........ I see all your videos.........

  • @beabillionaire8364
    @beabillionaire8364 3 місяці тому +103

    Batch 2024-2025 markyour attendance 👇👇

  • @MR.RANDO2586
    @MR.RANDO2586 Рік тому +3152

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  • @mayanknjays3085
    @mayanknjays3085 4 роки тому +680

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  • @comtruise7063
    @comtruise7063 4 роки тому +437

    Physics is a subject . Physics wallah is the emotion.

    • @kiransaleem9856
      @kiransaleem9856 3 роки тому +8

      physic is a subject, physics wallah is a way to reach physics..

    • @sakshibudhrani5183
      @sakshibudhrani5183 3 роки тому +2

      hey can u plz tell me that this series is enough to cover modern physics???

    • @kiransaleem9856
      @kiransaleem9856 3 роки тому +2

      @@sakshibudhrani5183 no xrays, compton, electron microscope missing

    • @sakshibudhrani5183
      @sakshibudhrani5183 3 роки тому

      @@kiransaleem9856 okay thx

    • @amulya_asmi
      @amulya_asmi Рік тому

      Physics is not just a subject.
      It's my love🧡

  • @TheHirdeshfitness
    @TheHirdeshfitness Рік тому +11

    3 saal me Bacchon ne or youtube ne puri jindgi change kar di or sir ki mehnat ne bhi good 👍🔥💯

  • @Gunjansharma649
    @Gunjansharma649 2 роки тому +13

    4:45 ashneer grover - ye sab dogalapan hai 🤦🏻‍♀️
    Thnku so much sir.. awesomely explained ❤️🌻

  • @agoogleuser9922
    @agoogleuser9922 3 роки тому +762

    Playback speed Normal = Aam Zindagi
    Playback at 2x = Mentos Zindagi ,💥

  • @khushisharma4328
    @khushisharma4328 9 місяців тому +64

    Batch 2024 ,it's Time for attendance 👉🏻👉🏻👉🏻👉🏻

  • @Unpredictable394
    @Unpredictable394 2 роки тому +87

    Sir, you can't imagine how you helped the student as a bright future of their life. I am so appreiciating with you study

  • @singledeep7tech441
    @singledeep7tech441 4 роки тому +367

    ईश्वर आपको काफी उन्नति दे आज बिहार के गरिबों विद्यार्थी गांव में कोचिंग न होने के चलते इस चैनल अर्थात् फिजिक्स वालाह के द्वारा काफी सहायता मिल रहीं हैं। बिहार के लाखों बच्चें आपके आभारी हैं।

    • @radheyshyamsharma6598
      @radheyshyamsharma6598 3 роки тому +21

      ना केवल बिहार अपितु समस्त हिंदी भाषीय राज्यों के विद्यार्थी आभारी हैं।🙏🏻

    • @varishsingh8801
      @varishsingh8801 3 роки тому +5

      Aur unke sath mai bhi Thankful hun. Thank you sir

    • @Thestar1234-e6y
      @Thestar1234-e6y 3 роки тому +3

      Hindi exm😁😁😁

    • @yashwant4660
      @yashwant4660 2 роки тому +1

      Hindi level : GOD

  • @sunainakhunger5652
    @sunainakhunger5652 3 роки тому +162

    Just opened today to study...and exams are postponed 😂😂😂😂
    Covid....

  • @ifyouaresinglethenobviousl26
    @ifyouaresinglethenobviousl26 2 роки тому +149

    ELECTRON EMISSION
    In metals, the electrons in the outer shells (valence electrons) are loosely bound
    to the atoms, hence they are free to move easily within the metal surface but
    cannot leave it. Such electrons are called free electrons.
    These free electrons can be emitted from the metals, if they have sufficient
    energy to overcome the attractive pull of metal surface. The phenomenon of
    emission of electrons from the surface of a metal is called electron emission.
    The minimum required energy for the electron emission from the metal surface
    can be supplied to the free electrons by anyone of the following physical processes
    (i) Thermionic Emission Sufficient thermal energy can be imparted to the
    free electrons by suitable heating, so that they can come out of the
    metal. This process of emission of electrons is known as thermionic
    emission and the electrons so emitted are known as thermions or
    thermal electrons. The number of thermions emitted depends on the
    temperature of the metal surface.
    (in) Field Emission or Cold Cathode Emission It is the phenomenon of
    emission of electrons from the surface of a metal by applying a very strong
    electric field (~108 Vm
    -1) to a metal. One of the examples of cold
    emission is spark plug.
    (ini) Photoelectric Emission It is the phenomenon of emission of electrons
    from the surface of metal when light radiations of suitable frequency fall
    on it. Here, the energy to the free electrons for their emission is being
    supplied by light photons.
    The emitted
    electrons are
    called
    photoelectrons. The number of photoelectrons emitted depends on the
    intensity of the incident light.

    • @lbsnna26
      @lbsnna26 2 роки тому +3

      👏👏

    • @yamraj74
      @yamraj74 2 роки тому +6

      Chhaap diya

    • @sunboy_nika
      @sunboy_nika 2 роки тому +2

      Bro ua lecture jee level ka lia relevant hai kiya ???

    • @pratikrout1400
      @pratikrout1400 2 роки тому +5

      @@sunboy_nika han bas questions thode zayda practice kar lena

    • @abhinavmishra6617
      @abhinavmishra6617 8 місяців тому

      ​@@sunboy_nikayes brother

  • @user-in3ir2xm8q
    @user-in3ir2xm8q 7 місяців тому +10

    Best teacher in the whole universe ❤️

  • @ganeswarnayak78
    @ganeswarnayak78 4 роки тому +1941

    Who wants semiconductors. Hit like
    👆🏻👆🏻👆🏻 .Anyways thank you very much sir.❤

    • @anshul8120
      @anshul8120 4 роки тому +11

      Padha denge bhai jaldi na karo

    • @i_am_arsh769
      @i_am_arsh769 4 роки тому +8

      Sir ne inform kiya tha ki semiconductor board exam k Baad pardhayenge...uske pehle not possible

    • @mohammadsaif3382
      @mohammadsaif3382 4 роки тому +7

      Sir ne poll bhi nahi kiya

    • @ayushjain1232
      @ayushjain1232 4 роки тому +9

      Sir poll krenge bole teh♍♋♊😭

    • @ansh7156
      @ansh7156 4 роки тому +7

      After mains ...
      Modern physics have more weightage and is comparatively easier

  • @shreyakesarwani6874
    @shreyakesarwani6874 3 роки тому +513

    Who will see the lecture in December 2020 like because I thought I was too late

  • @bhuvan77411
    @bhuvan77411 6 місяців тому +15

    SIR IS THE BEST IN THEORY AND FORMULAes 💛🐐

    • @dr.varsha0909
      @dr.varsha0909 6 місяців тому +3

      Kya ye lecture shi hain 😢😢neet 2024 ke liye
      Mtlb sare concept clear ho jayege n...old lecture hain isliye bola😢

  • @2.2statusyy
    @2.2statusyy Рік тому +23

    2x speed like here 😄❤️

  • @kiran8862
    @kiran8862 4 роки тому +273

    *12th* CLASS PLZZ LIKE!! (so that sir can see) imp topic for 2020 Jan jee!
    Thanks sir, plz *last December* Tak *complete* Kar dijiye

  • @khushiyadav4378
    @khushiyadav4378 Рік тому +253

    Who came here to watch this lecture for neet 2024

  • @dhananjaysharma783
    @dhananjaysharma783 2 роки тому +2

    sir because of rakshak sir , i have developed a great interest in physics and bieng in 9th class , iwatched all your videos of 11th and my 12th class physics is going to get completed in few days

  • @SuccessWaiting
    @SuccessWaiting 4 роки тому +471

    *जिनके पास इरादे होते हैं*
    *उनके पास बहाने नही होते ।।*

    • @SSSS2k25
      @SSSS2k25 4 роки тому

      Really...ua-cam.com/video/W-jZL4eAe5w/v-deo.html

    • @RahulSharma-uo8ji
      @RahulSharma-uo8ji 4 роки тому +2

      Wala wala wala..

    • @SSSS2k25
      @SSSS2k25 4 роки тому +2

      Thanx sharma g

    • @vartikaindora5906
      @vartikaindora5906 4 роки тому +4

      @@neharahul616 And you're always hanging in the comments to curse people. Play games

    • @vartikaindora5906
      @vartikaindora5906 4 роки тому +16

      @@neharahul616 N yeah bata doon to likes ki bheekh maangte hue maine bhi pakda tha tujhe chem ki video mein. Khud ko dekha hai "Sir ko kon kon like karta hai yahan like karo" kehne wala tu hi tha na 😂

  • @pragyansinghrajput3099
    @pragyansinghrajput3099 4 роки тому +623

    100% concept clearity, no one can compete this person... best teaching in the world and the best teacher too..

    • @dhananjayjadhav9609
      @dhananjayjadhav9609 3 роки тому

      Chup be

    • @pragyansinghrajput3099
      @pragyansinghrajput3099 3 роки тому +8

      @@dhananjayjadhav9609 Tu hi padha de toh fir

    • @dhananjayjadhav9609
      @dhananjayjadhav9609 3 роки тому

      @@pragyansinghrajput3099 kyo nahi

    • @pragyansinghrajput3099
      @pragyansinghrajput3099 3 роки тому +11

      @@dhananjayjadhav9609 Theek he, toh kar start channel, or ha 2 saal me 3 million pe pahunch jaana.

    • @dhananjayjadhav9609
      @dhananjayjadhav9609 3 роки тому +9

      @@pragyansinghrajput3099 jarur dekhte rahana my channel name is physics wallah ,😂😂😂😂sorry Yar best teacher alakh sir

  • @abhinandanjain2399
    @abhinandanjain2399 7 місяців тому +2

    Thank u so Mach alakh sir. Aapne itna अच्छा padaya ki maine inhin se notes banae Hain aapane bahut Achcha samjhaya thank u. Mujhe quality notes mil gaye aapke channel per.

  • @MoonBabe2005
    @MoonBabe2005 Рік тому +9

    Neet 2023 k liye maine a lecture dekhi😁😁,, because mujhe aj ki date Mai jitni video hai iss topic par mujhe samajh nehi aya 🙄,,

  • @mirajmetaliya7191
    @mirajmetaliya7191 4 роки тому +60

    Best Teacher in the world....
    Like for "Alakh Sir"...

  • @SuccessWaiting
    @SuccessWaiting 4 роки тому +7

    *ज़िन्दगी को आसान नही*
    *इस खुद को मजबूत बनाना पड़ता है*
    *सही समय कभी नही आता*
    *बस समय को सही बनाना पड़ता है ।।*

  • @Mrcrore.7
    @Mrcrore.7 5 місяців тому +4

    I am preparing for ssc but just came here to listen hello baccccchhhhooooo 👂
    Bas sir ki yad aa gyi........❤😅

  • @sheramohiuddinkhalifa9432
    @sheramohiuddinkhalifa9432 2 місяці тому +10

    4:59 photoelectric effect
    12:39 discussion of points
    30:29 Emission of electrons from metals
    42:59 combining 2 topics
    53:23 Threshold frequency
    1:00:38 Threshold wavelength
    1:06:44 kinetic energy
    1:13:05 Q solving

  • @abhaypage9611
    @abhaypage9611 4 роки тому +114

    Best "institution" in india "PHYSICS WALLAH" Where the students not only learns studying but also learns how to live how to help and how to grow our country............
    Every country need this man the world needs this message
    .......
    Sir u are made to develop the minds of the students for their bright future as well as bright future of the world.....
    Just millions of "SALUTE" {ALWAYS}........

    • @rajphylab8861
      @rajphylab8861 4 роки тому

      mportant 2020 ISC Physics Electricity Practical... ua-cam.com/video/n3zIIVZ9NsQ/v-deo.html

    • @abhaypage9611
      @abhaypage9611 3 роки тому

      @@AnilKumar-ep9jv haa bhai jarrur theory wale toh sab ho jayenge....

    • @abhaypage9611
      @abhaypage9611 3 роки тому

      @@AnilKumar-ep9jv bhai numericals ke liye thoda aur knowledge lagega i mean in deep..

  • @shaileshnalavadi2308
    @shaileshnalavadi2308 4 роки тому +25

    At last modern physics!!!!!! Happy it started but.....
    Sad that it is the last part of physics 😢😔😔

    • @AnasAnsari-do5bt
      @AnasAnsari-do5bt 4 роки тому

      Dual nature modern physics kah part hai ya optics kah I am in class 11

  • @aviralpandey45
    @aviralpandey45 2 роки тому +5

    Number 1lecture with awesome👍😊 teacher 😍😍😍😍😍😍😍😍 I m very lucky to learn with Alakh sir,✨⚡🔥🔥🔥🔥🔥😍

  • @yuvrajsatpute9078
    @yuvrajsatpute9078 8 місяців тому +15

    Quality > Quality
    This man has provided it☺️

    • @emulousfigure9729
      @emulousfigure9729 8 місяців тому +1

      Kya bas mujhe he kuch samjh nhi aaya?😔

    • @bhavanipakki3524
      @bhavanipakki3524 7 місяців тому

      bro do u mean quality>quanity?

    • @ABHIKASHYA
      @ABHIKASHYA 6 місяців тому +1

      ​@@emulousfigure9729mujhe bhi kuch samjh nhi aayi🙂

  • @nishagautam889
    @nishagautam889 3 роки тому +76

    Sir......In covid time....ur lectures are really helpful for me.....thnks alot❤❤🌝🌝.......jo bchae aapni online cls bunk krkae sir kae lectures dekhtae haii like thokooo !!!!😂😂😂👨‍💻👨‍💻

  • @AHV7054
    @AHV7054 4 роки тому +90

    Sir Maine Isko Unacademy Sae pad Liya tha abhi 1 week pahle Bcoz Maine Socha Nhi tha Ki aap Isse itni jaldi Padyege But Sir Mae dobara dekh rha Hu bcoz Pata Nhi Kyu sir Jab Mae aap sae pdta Hu toh Ek Alag Tarah Ki feeling Aati joh Kisi Bhi UA-cam Ke teacher ke pass Nhi Aati Aisa Lgta hae Ki woh Log course kara rhe hae sirf.
    But jab Aap padate hae toh Ek dum Aisa Lgta hae Ki mujhe Mera Sabse accha best frnd pada rha hae.
    SIR YOU ARE NOT A ONLY TEACHER. YOU ARE ALSO A MAGICIAN.♥️♥️♥️♥️ LOVE U 3000 SIR BIG FAN.

  • @Anjalikumari97725
    @Anjalikumari97725 5 місяців тому +4

    Sir u are the real hero of whole world 🌎😊

  • @arpitgupta7867
    @arpitgupta7867 2 роки тому +83

    These lectures are so well structured that you can revise the whole chapter again in about 1 hour

    • @gudupallyvanitha3742
      @gudupallyvanitha3742 2 роки тому +1

      Did sir had taught each and every thing?

    • @neelavadas1248
      @neelavadas1248 2 роки тому +1

      @@gudupallyvanitha3742 Yesss

    • @Alok...
      @Alok... 2 роки тому +2

      @@gudupallyvanitha3742 numerical practice chyie aur to sir kra he dete hai👍👍

  • @tanmaygupta3266
    @tanmaygupta3266 4 роки тому +122

    Motivation like dino james .physics wallah.

  • @gvr7139
    @gvr7139 4 роки тому +157

    Sir semi conductors if possible before January...Hit like if sir is the best motivator and and a subject expert!!

    • @UBEDebasmitaChowdhury
      @UBEDebasmitaChowdhury 4 роки тому +3

      Sir ne bola tha ki modern physics krwaenge next semiconductor nahi

    • @tushar404
      @tushar404 4 роки тому

      Mushkil hai bahi

    • @zarakhan3843
      @zarakhan3843 4 роки тому +3

      Ha semiconductor bad m pehle modern ho jay

    • @ansh7156
      @ansh7156 4 роки тому

      Semiconductor after 1st mains but before boards

    • @AnanyaShukla89
      @AnanyaShukla89 4 роки тому

      Confirm hai dec mein modern physics ho jayegi kya????

  • @Kiran34____.
    @Kiran34____. 6 місяців тому +18

    Watching in Jan for
    January attempt 😅😅❤❤

    • @shivamgupta9329
      @shivamgupta9329 6 місяців тому

      Bhai tumhare exam ka date kya hai???

    • @Kiran34____.
      @Kiran34____. 6 місяців тому

      @@shivamgupta9329 27 th Saturday

  • @suzziivlog8977
    @suzziivlog8977 2 роки тому +172

    Who all are watching this video now for their term 2 board exam 2022😁?

  • @akshayak2955
    @akshayak2955 4 роки тому +128

    Any NEET aspirant here?
    By the way Sir's lecture are always to the point and easy to understand.
    Couldn't find Good Lecture videos on Modern Physics anywhere and I landed here by God's grace!!

  • @carboncopy154
    @carboncopy154 4 роки тому +8

    वाह । फिजिक्स पढ़ाने का सही तरीका यह ही है । पूरी तरह मस्ती में डूब कर पढ़ाने का तरीका मस्त है ।
    I love you

  • @rishabhranarajput11303
    @rishabhranarajput11303 9 місяців тому +7

    Done 💯👍
    2 November 2023

  • @shailyhazari9528
    @shailyhazari9528 Рік тому +3

    Sir apke lectures are best.....2023 students all the best...phod kr aana

  • @bhavyrahangdale2063
    @bhavyrahangdale2063 4 роки тому +179

    I have unacademy plus subscription, but physics wallah sir forced me to watch his video because I didn’t found a proper video on modern physics there!!😖❤️

  • @rahulgupta2212
    @rahulgupta2212 3 роки тому +157

    Didn't study in whole lockdown. Lectures by school teachers palle nhi pada and now I am here in last week of April for boards😂

  • @ManjuGupta-xr6co
    @ManjuGupta-xr6co Рік тому +8

    Hatts of to your teaching sir
    God bless you

  • @harishankarchaturvedi94
    @harishankarchaturvedi94 2 роки тому +5

    NCERT wallah je bajay hame to yahi se padhane pr samajh aata hai

  • @bhumikachauhan5258
    @bhumikachauhan5258 3 роки тому +41

    This is known as success....... Advertisement of yakeen batch physicswallah on physicswallah...amazing😄😄😄

  • @kamalrathi7017
    @kamalrathi7017 4 роки тому +315

    Topics to be covered in this video✌are
    introduction
    👉photoelectric effect
    👉properties of photon
    👉electrom emission +its type🙅
    work function👇
    Along with dependency
    👉threshold frequency
    👉einstein photoelectric equation
    👉threshold wavelength

  • @rajatdas7169
    @rajatdas7169 2 роки тому +6

    0:51 ashneer grover se pehle yeh alakh sir ne kaha tha

  • @vimalsahu5480
    @vimalsahu5480 4 роки тому +42

    16:39 ...the most trending dialogue of 2k19😂

    • @rajphylab8861
      @rajphylab8861 4 роки тому

      mportant 2020 ISC Physics Electricity Practical... ua-cam.com/video/n3zIIVZ9NsQ/v-deo.html

  • @Princess_77718
    @Princess_77718 Рік тому +1

    I am in class 11th but still have seen this full video... &understood also... Thank you so much sir

  • @ashmitsawant1574
    @ashmitsawant1574 6 місяців тому +9

    Man with zero haters❤

  • @tisha435
    @tisha435 3 роки тому +48

    Who love alakh sir by heart for his explanation ❤️❤️

  • @ShivYadav-go2wl
    @ShivYadav-go2wl 3 роки тому +33

    "Love from Nepal" (crystal clear conpect). I never seen teacher like this.

  • @Sumanth_thota123
    @Sumanth_thota123 6 місяців тому +26

    Batch 2024 attendance 🎉

  • @solidbhatt
    @solidbhatt Рік тому +2

    Aapse aacha aur koi ni padhata sir thank you ♥️

  • @JaiRam736
    @JaiRam736 3 роки тому +35

    24:19
    He never have thought at that point that HC Verma himself will join him in his journey.

  • @amitsahu1781
    @amitsahu1781 4 роки тому +9

    Aagya re mera physics wallah😇😇💚🧡

  • @chhawlaacademy
    @chhawlaacademy 11 місяців тому +17

    Who Prepare for Board 2023-24 ❤😮😮😮
    सीबीएसई वालों 😢😢😢😢
    Thanks Sir 👋 😊 🫂 🙏

  • @Saniyaaaaaaa32
    @Saniyaaaaaaa32 Рік тому +7

    The old videos of Alak sir are still💎

  • @secretscantreveal3550
    @secretscantreveal3550 4 роки тому +7

    Sir @physicswallah - aap bhot Accha padhate ho acche se smjh AA kataa h aur vo bhi simple language Mai🤗🙏🙏🙏👏👏👏👏👏👏👏👏👌👌👌👌

  • @rrrrraeeeeedorm7973
    @rrrrraeeeeedorm7973 3 роки тому +18

    Lets make alakh sir on trending one day🥺🥺

  • @user-hf4pi4il6u
    @user-hf4pi4il6u Місяць тому +1

    Thanks a lot Alakh sir .

  • @pranjalibisht2224
    @pranjalibisht2224 Рік тому +4

    Completed, thankyou sir🙏❤your teaching is just amazing! 😌

  • @Mohd_Rashid_Khan_0786
    @Mohd_Rashid_Khan_0786 4 роки тому +35

    Kasam se sir bahut maja aa rha bahut interesting kar diya aapne modern physics

  • @DhananjayShukla
    @DhananjayShukla 4 роки тому +96

    At 20:57 .... Sir i can derive this equation...😊🙏 Let's see
    We all know about E= mc² , So, E= m × C × C
    Now m × c = P (ie momentum)
    E = P × C , where as = E = HC/lambda
    So ,P = HC/Lambda/C (by substituting E eq.)
    So here ; C/C cancelled and remain ,
    H/Lambda so we can write this as
    P = H/ Lambda proved!!!!❣️😊
    Thanks 🙏🙏🙏

  • @wildspray0758
    @wildspray0758 Рік тому +1

    thank you sir for this wonderful lecture🥰🥰🥰❤️❤️❤️

  • @anjalishah2845
    @anjalishah2845 2 роки тому +1

    You are JUST the GREAT, sir.

  • @pratyushmishra7299
    @pratyushmishra7299 4 роки тому +36

    Oho!! subah subah chai biscut ke saath PHYSICS WALLAH great start of my day.

    • @parimalkothari7607
      @parimalkothari7607 4 роки тому +3

      Subah.........1 ghante me noon ho jayega bro😂😂

    • @rishi8536
      @rishi8536 4 роки тому +1

      11 baje chai biscuit...

  • @anshubajpai8631
    @anshubajpai8631 4 роки тому +66

    Sir semiconductors please if possible before February can you start....
    Reason is not much good videos available with clear concept..🙇👐
    Waiting for yours..😇😇

  • @Avengers_12525
    @Avengers_12525 2 роки тому +3

    The physics wallah is Great🙏🙏

  • @mahak288
    @mahak288 Рік тому +5

    JEE 2023 physics 80+ target 👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻

  • @STUDIOUSBRO
    @STUDIOUSBRO 4 роки тому +434

    TU Jo Mila , to aasan Hui manjil
    TU Jo Mila , to aasan Hui mushkil
    Super 30 lakh -(search if interested to watch)
    My class story(local one not any reputed)
    Once upon a time:::, I had a chemistry teacher(still there but not teaching me)
    He didn't taught nicely, used to waste our time by confusing , used to use phone for 10 to 15min daily chatting in class(in my class only 4 students prep for jee ,)
    If we used to ask doubt , he used to tell evertime
    " No , this can't be the answer , maybe printing error"
    And used to give any nonsense explanation of doubt, which is even not related to questions
    Then, I got u (2 months ago)
    Now , a new teacher came ask us how much we know
    And I was able to answer his almost all questions , he asked
    "What you no , it isn't taught in class"
    We replied "no"
    He" then from where you studied these things"
    I "Physcis wallah UA-cam channel"
    He" ohh , chemistry wallah "
    He asks one more question
    I answer
    He _ chemistry wallah
    I nodding my head
    He " UA-cam see thodi na padhajata hai, tumne to aadha see jyada VAHI see padh liye , pay kardo chemistry wale ko"
    After a second
    "Hamari roji roti band karwaoge kya"
    🙏🙏🙏🙏🙏
    God Allah aur bhagawan ne banaya ek insan , Aya jamin par lekar vo uparwale wale ka farman

    • @thatspradeepjain
      @thatspradeepjain 4 роки тому +9

      Mera to bahot man karta hai 😍😍😍

    • @RiteshKumar-dw5cf
      @RiteshKumar-dw5cf 4 роки тому +7

      Bakwas shayri

    • @RiteshKumar-dw5cf
      @RiteshKumar-dw5cf 4 роки тому +2

      Bt awsome physics wallah

    • @STUDIOUSBRO
      @STUDIOUSBRO 4 роки тому +9

      @@RiteshKumar-dw5cf it isn't any shayri , I am not any shayar
      That my feelings

    • @RiteshKumar-dw5cf
      @RiteshKumar-dw5cf 4 роки тому +2

      Yes bro I respect ur feelings and I also have same feelings and respect for alakh sir...
      Sorry If I heart u

  • @Unknown-np3sk
    @Unknown-np3sk 3 роки тому +844

    Is there anyone like me 😅 during December and January

  • @rajendradubey6200
    @rajendradubey6200 Рік тому +1

    Dil se dhanyabad guru ji 🙏🙏🙏

  • @_deepanshumahur
    @_deepanshumahur 9 місяців тому +1

    Master of masters, genius the strongest.।।

  • @manojkumarsarangi8759
    @manojkumarsarangi8759 3 роки тому +42

    The pro legend start the class in May 2021😎😎 the parents reaction will -
    "Oh Bate tu to moj kardi"

  • @prachipiyush5960
    @prachipiyush5960 4 роки тому +10

    Let 's celebrate this independence day ... with our lovely alakh pandey sir...The heart♥️ of millions of students as well as of parents ..

  • @muhammadfurqan9545
    @muhammadfurqan9545 Рік тому +4

    Exams are near, no fear ,bcz physics wallah is here.

  • @AK-wy2gf
    @AK-wy2gf 2 роки тому +10

    This man has a great potential
    I can predict one day he will interview HC Verma in this channel

  • @Grind24622
    @Grind24622 3 роки тому +392

    who is watching this lacture in nov 2020 for boards

  • @Bhabeshjr
    @Bhabeshjr 3 роки тому +316

    Ultra legend;start study in february 2021😉

  • @mohitgujjar8597
    @mohitgujjar8597 2 роки тому +2

    Thanku sir for this wonderful lecture

  • @krishnasaini2367
    @krishnasaini2367 10 місяців тому +1

    This person make a big history in education feild😮

  • @sabnurmallick6519
    @sabnurmallick6519 4 роки тому +182

    😊 thank u sir ,actually without u I can’t imagine physics .

  • @SuccessWaiting
    @SuccessWaiting 4 роки тому +11

    *दुनिया को वो लोग ही बदलते हैं*
    *जिनको दुनिया कुछ करने लायक नहीं समझती ।।*

  • @pankajjainfivestar690
    @pankajjainfivestar690 9 місяців тому +16

    Kon kon ALAKH SIR kai sath ye chapter start kar rha hai

  • @LEGENDDD2005
    @LEGENDDD2005 2 роки тому +13

    WHO IS WATCHING FOR TERM2 IN JANUARY '22

  • @ekrabano2990
    @ekrabano2990 2 роки тому +20

    When we see all these lec so, it just like we are studying at classes at this lockdown ...... Nice lec

  • @funbyjethalal5304
    @funbyjethalal5304 3 роки тому +38

    Is there anyone like me watching for jee mains 2021

  • @snehasahani8229
    @snehasahani8229 Рік тому

    woww sirr, your's teaching style is superb😍