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/ Physicswallah Facebook Page: facebook.com/physicswallah Physicswallah Twitter Account : twitter.com/PhysicswallahAP?s=20 Physicswallah App on Google Play Store : bit.ly/2SHIPW6 Physicswallah Website: physicswallahalakhpandey.com/ 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 TH-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. 11 chap 2 : Atomic Structure 01 ||Cathode Rays + Rutherford Alpha Particle Scattering Experiment || th-cam.com/video/Oj-vA63nsBI/w-d-xo.html Class 11 chap 2 | Atomic Structure 02 | Bohr's Atomic ModeL | Most Important For IIT JEE and NEET || th-cam.com/video/w1gxYuOihJ4/w-d-xo.html 11 Chap 2 || Atomic Structure 03 || Atomic Spectrum || Hydrogen Spectrum || Class 11 / JEE/NEET || th-cam.com/video/nRmfrVR4uC8/w-d-xo.html 11 Chap 2 || Atomic Structure 04 || De Broglie Wavelength || Heisenberg Uncertainity Principle || th-cam.com/video/YqUSyPUFVVY/w-d-xo.html Class 11 Chap 2 | Atomic Structure 05 | Quantam Numbers | Pauli's Exclusion Principle | JEE / NEET th-cam.com/video/fOTAD7DmbzY/w-d-xo.html Aufbau Principle || Atomic Structure 06 || Classs 11 chap 2|| Rules for Filling Of electrons || IIT th-cam.com/video/rvA3K-ORxPg/w-d-xo.html Hund's Rule |Atomic Structure 07 |Rules for Filling OF Electron| Hund's Rule of Maximum Multiplicity th-cam.com/video/eMgVB0zoiPo/w-d-xo.html How To do Electronic Configuration || Atomic Structure 08 || Electronic Configuration ||spdf th-cam.com/video/ICHMWOFTlV8/w-d-xo.html How To Solve Physics NumericaLs || How To Study Physics || How To Get 90 in Physics || th-cam.com/video/AIMfSclMnts/w-d-xo.html
lymn were forming because electron wants to stable and due to that it has to be in the lowest shell than why the electron will fall on other shell rather then shell 2 or more ???.
He deserves Civilian Award.. For being such a good teacher and a good human... Who teaches free, in today's world where education is no less than a business... 🙏🙏🙌🙌
@Fameer Fuddi ✓ I am not ungrateful But to tell you the truth It's true sir teaches well But isn't he getting paid and now also have paid courses for all that teaching
Log 1 - 1.5 ghante ka video bnate h to dekhne ka b mann ni krta....but jb aapki video dekhti hu to 1 ghanta pta hi ni chalta kb khatm ho gya.....Ur way of teaching is sooo good👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏Thank you sooooooooo much sir for teaching us😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃 May God bless u😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊
Lyman Series : Longest 1216 A Shortest 911 A Balmer Series : Longest 6552 A Shortest 3644 A Paschen Series : Longest 18740 A Shortest 8200 A Bracket Series : Longest 40488 A Shortest 14576 A Pfund Series : Longest 74536 A Shortest 22775 A Humpherry Series : Longest 123615 A Shortest 32796 A Note : The values that a I have calculated are approx. and A represents Angstrom.....Thank You...
Way of teaching - outstanding! Content: superior! Speed of completion: accurate! Interaction: admirable! Fees: null! Dream? : No!! Alakh sir thank you so much!!!!✨🙂
@@techtoysandprograming9821 Its not a flex you weapon😭😭😭 its based on the fact that how much are you able to grasp...if you look closely he's covering a lot outside the book because this video is also meant to help the JEE/NEET students. Assuming you're in 11th, last video's Kinetic energy, radius etc's derivations were not at all important but from competition's point of view they're.
46:49 This completely breaks our heart when we study the complete Bohr's model and get to know that it was a failure. 😢 We have to study new theories now.
@@piyushsinghjeeaspirant3650 don't worry ..they r sort of insecure from him...that's it..bat unki hoti h jinmein koi baat hoti h ..so PHYSICS WALLAH IS BEST..
Sir honestly I've taken subscription of physics Wallah but still studying from your old videos on TH-cam........well I guess this shows that pw is not an app or channel it is an emotion.......you understand us...you know the things which we don't even know about ourselves we love you sir......
Really Sir, I do not write comments frequently but this time you literally made me emotional to a great extent that how much you care for us that every video is detail oriented ... THANK YOU very much for this unasked help which is making hidden 'bright students' to come up at National Levels...!
Sir, you are amazing. You are the best physics and chemistry teacher in India. Even teachers of great educational institutions like FIITJEE, ALLEN, RESONANCE, VEDANTU and UNACADEMY are nothing in front of you. We salute you and your efforts. Those who agree please comment to support our ALAKH PANDEY sir.
I stopped watching physical chemistry from current PW and came to learn from your videos because u teach much better than teachers who are teaching now
Sir you are just like a ray of hope who inspired those students who can't afford the fee of big institutions like Allen , fiitjee like that. I thank you from the core of my heart
Baki sare TH-cam channel ke 1 se 1.5ghante ka video kitna bore karta hai but alakh sir ke to 1 ghante ke video mai itna maza aata hai ki 1 ghanta kab nikal gaya pata bhi nahi chalta. Hats of to the teacher who teaches students without asking to like or subscribe to there channel 🙃🙃👏👏👏👏👏
Sir you explain the derivation of formulae in an amazing manner and the concept is now crystal clear to me. My chemistry teacher just gave the formula at 16:41 and told to learn it. Sir aap katayi ZEHER padhate ho.
Thankyou so much sir ki aapne hme free of cost lectures provide kiya hm apne financial problems ke wajah se allen akash jaise coching ko afford nhi kr skte.... But sir aapke lectures se hm kisi bhi competitive exam ko crack krne ki himmat rkhte hai kyu ki aap world ke best teacher ho.... School mein jb yeh chapter padhaya gya tha to hme hawa bhi nhi lga tha But sir aapke lectures ko follow krne ke baad yeh to ab halwa sa ho gya hai Thank you so much sir Mein aapki jitni bhi tareef krlo kam hi hai sir mere paas ab shabdho ki hi kami padh rhe hai aapki tareef krne ke liye And finally sir aap mere ideal teacher se bn gye hai.....
@@salonityagi2704 Dumbass he is not including you he is just representing the majority of the viewers that is why he is stating that and second of all Sirs main intention is this only to give as much of free lectures to those who can not go to those big fat coachings
Sir by listening to your classes I can understand the topic much efficiently, because your way of explanation is too good sir. That is the reason behind 2.8 million subscribers sir. I like the way of your explaination sir, its too good.
Really sir 50 teachers ek taraf kardo aur apko ek taraf krdo, tabhi aap 100%aage nikloge unse padane me, kyunki sir aapke padahane me sach me feel aata hai
Started with cracking NEET and came to youtube to watch the concepts uh missed by missing concepts in class u will crack NEET .. And commenting here about cracking NEET .. U are great bro .. 🔥🔥🔥🙆🏻♂️👌🏻
Muje hanesha se lagta tha ki padhai bahut boring cheez hai aur hai bhi par apka video Dekhne ke baad ab pata Chala ki padhai me bhi enjoy ho sakta hai The way you teach is really unmatchable. Hands off to you sir Aap padhate to accha ho hi aap itne acche se baad bhi karte ho jab Mai free hota hu to sochta hu Chalo alakh sir ki ek lecture padh leta hu ejoy bhi ho jayega aur padhai bhi ho jaayega Thank you so much sir for your hardworks💕💕💕❤️🙏
Sir I don't think that u r my teacher I think that u r my friend to explain in a very easy way. Thank u so much sir for teach us to understand all the concept. U r a great person.I m fully confident to achieve my goals when I m learn with u sir.Again thnx a lot sir
We can also find the no. of spectral line by this trick n(n-1)/2 where n is the number of the final spectral line . For instance, from 4 to 1 ,here n=4 ,so 4(4-1)/2=6 spectral lines
@@piyushsinghjeeaspirant3650 jiska level nahi hota hai wo jyada phad phadata hai. Everyone knows who is best and successful. Don't worry and do best in exams.
@@ritasahu3222 Your formula is only applicable when an electron jumps from nth shell to ground level. First take complete knowledge........don't write shit everywhere 😒😒😒😒😒
It's k with your typing no problem.But whatever u wanted to say was just fantabulous.And the one who is commenting on your English.For your kindest information even your English is bad.The sentence you used is completely incorrect
@@adityadua6867 What is the meaning of 'Jodi' you fool.Its clear he wanted to write 'jaldi' and that would have been a typing error.Bastards like you love to humiliate themselves🤣🤣🤣Aditya 'piece of shit' Dua💩.........that's your new name...
@@medicoholic_ZEE th-cam.com/video/pANNI0qLuvg/w-d-xo.html Alakh sir ke sath ultimate fun 🤩 Bas ek baar dekh lo agar acha na lage to dislike kar dena.🙏🙏👆👆
At 36:25 , firstly line from n=infinite to n=1 has to come not from n=2to n=1 As we go from left to right , wavelength increases As we know difference in energies is inversely propotional to wavelength Therefore for max energy , wavelength should be smallest ,Which is from n=infinite to n=1 Therefore , firstly n=infinite to n=1 line will come Hope you guys understand
I got really amazed for the fantastic shortcuts Sir gave! Sadly, I wasn't aware of this beautiful channel in my 11th. And not even in 12th( 2019-20).😑( It could have helped me in boards physics for calculation in questions from Modern physics......rather I couldn't do the calculation part) Regret!!!! Anyway, I guess , it will be really helpful to me for Neet 2020!
*Jitna bolun..utna kam hai sir apke liye!!* _You are really doing great..!!_ _It feels..that a bond..n connection kinda thing generated between you and us!_ Your way of teaching is... *AMAZING* *God bless you* ⭐
sir aapne bataya ki electron try to remain in lowest energy level lekin sir agar kisi atom me 4 orbits to 4th shell wala electron energy gain karke kahan jaayega kyoki wahi uska lowest energy level hoga pls reply ? BY THE WAY YOUR WAY OF TEACHING IS EXECELLENT
it will escape the atom , hence ionizing the atom . that is why when dealing with reactions and stuff we normally take into consideration the valence shell or valence electron because only the valence electrons will escape the atom when given energy and take part in things happening outside the atom as they have no shell of higher energy to jump to
Sir aap k lectures12th physics k atom aur nuclei ko cover bhi cover kiye hain mostly , it's not only for 11 th it's for 12th BONUS, U R THE BEST Teacher sir best.
I just realized that this video and the earlier three ones were made on the same day!! imagine how exhausting it must be to teach to a camera lens alone in a small room..he is REALLY giving his best to keep the quality of content high and understandable and he is succeeding amazingly! His way of teaching is soo much fun AND informative at the same time!! thankyou soo much sir! I respect you a lot for sharing your knowledge and your hard work
Alternative trick for finding wavelength (w) (if you forgot the short trick). Let's start with an example Ques. An electron is emitted from ground state to n = 2 level. Then find the wavelength of the photon Sol. First find the energy in the ground state i.e. -13.6 eV Now find the energy in the second shell i.e. -3.4 eV Now find the energy required so that the electron emits from ground state to second shell ∆E = -3.4 eV - (-13.6 eV) = -3.4 eV + 13.6 eV = 10.2 eV. Now, E = 12375/w (for better calculation take 12400 instead of 12375) therefore the equation becomes 12400/w (in Å) Now put the value of w in this equation 12400/10.2 Å = 1215.68... Å ≈ 1216 Å Please like my comment. Bohot mehnat se type kiya hai.
One of the main reasons physics wallah is very successful is becoz he doesn't use too much English to show off, and in Hindi we can deeply engage with the topic and concept.
I m also a teacher of science (tuition)... teaching is my passion...but due to some neglecting human & dominating person's nature of thinking I don't get student's to teach.... but I m happy to see you...you are the inspiration for me
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 )
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Physicswallah Website: physicswallahalakhpandey.com/
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 TH-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.
11 chap 2 : Atomic Structure 01 ||Cathode Rays + Rutherford Alpha Particle Scattering Experiment ||
th-cam.com/video/Oj-vA63nsBI/w-d-xo.html
Class 11 chap 2 | Atomic Structure 02 | Bohr's Atomic ModeL | Most Important For IIT JEE and NEET ||
th-cam.com/video/w1gxYuOihJ4/w-d-xo.html
11 Chap 2 || Atomic Structure 03 || Atomic Spectrum || Hydrogen Spectrum || Class 11 / JEE/NEET ||
th-cam.com/video/nRmfrVR4uC8/w-d-xo.html
11 Chap 2 || Atomic Structure 04 || De Broglie Wavelength || Heisenberg Uncertainity Principle ||
th-cam.com/video/YqUSyPUFVVY/w-d-xo.html
Class 11 Chap 2 | Atomic Structure 05 | Quantam Numbers | Pauli's Exclusion Principle | JEE / NEET
th-cam.com/video/fOTAD7DmbzY/w-d-xo.html
Aufbau Principle || Atomic Structure 06 || Classs 11 chap 2|| Rules for Filling Of electrons || IIT
th-cam.com/video/rvA3K-ORxPg/w-d-xo.html
Hund's Rule |Atomic Structure 07 |Rules for Filling OF Electron| Hund's Rule of Maximum Multiplicity
th-cam.com/video/eMgVB0zoiPo/w-d-xo.html
How To do Electronic Configuration || Atomic Structure 08 || Electronic Configuration ||spdf
th-cam.com/video/ICHMWOFTlV8/w-d-xo.html
How To Solve Physics NumericaLs || How To Study Physics || How To Get 90 in Physics ||
th-cam.com/video/AIMfSclMnts/w-d-xo.html
Sir I know you will reply my comment. Because you are the best sir.
Bahut accha. 😂😂
Badhiya ho sir ji.
Aapse badhiya koi nahi padhata
Koi mil jaaye to batana
A man can teach Physics as well as Chemistry at this level is unbelievable.
When students can learn all physics, chemistry and mathematics, a teacher teaching more than one subject is not unbelievable.
This proves us that legends do exist 🙌🏻
@@srivarsha9574 yes i was thinking same😜
th-cam.com/video/kYd6qQwldFU/w-d-xo.html
Yes brother 😂
Almost 95 percent coaching students are also viewing lectures on this platform. That is the beauty of Physics Wallah.
Ok thanks for the useless information 🙆🏻♂️
@@__Shadow_ 👍👍
like me
Ok
@@__Shadow_ 🤣🤣🤣🤣
Who thinks these old lectures are better than current PW>>>>>>>>>
Me...I left PW's online classes and am here watching these old lectures... someone said it true that "old is gold"
@@noiyian4455 true physics wallah is known for alakh pandey sir not any other teacher teaches that better on PW platform
Bro tell me emitted mean
@@goku-pz6mx did u notice a mistake in sir’s lecture about the formula of En2 - En1???
@@alokthakur3992 kuch fekna or emit karna yani dena , absorb ka opposite
these old lectures are better than current PW lectures....
Yes u are right 😢😢
Nope
lymn were forming because electron wants to stable and due to that it has to be in the lowest shell than why the electron will fall on other shell rather then shell 2 or more ???.
Teaching lvl: IIT JEE
Subject: PHYSICS @ CHEMISTRY
Cost: 0
God bless 😇 you
Aur TH-cam bhi bhaut paisa deta hai
But hats off to this guy who is like god for students ❤️💪
@@aishnamishra3713 tu thodina ads ka Paisa deta hai baccho ke liye sab free hai or Kya bhuka mare Kya aadmi
PRINCE MISH cost 0 means that he is not charging for the video that is cost is 0 🤦♂️
@@aishnamishra3713 bro tu thodi na de raha apna paisa
@@aishnamishra3713 tere pocket se ja raha hai kya paisa? He is teaching for free only.
He deserves Civilian Award.. For being such a good teacher and a good human... Who teaches free, in today's world where education is no less than a business... 🙏🙏🙌🙌
Ya ofcourse
th-cam.com/video/7I35XLM4z6I/w-d-xo.html
Nothing like that exists
@Fameer Fuddi ✓ It really doesn't exist
@Fameer Fuddi ✓ I am not ungrateful
But to tell you the truth
It's true sir teaches well
But isn't he getting paid and now also have paid courses for all that teaching
"Theek
samajh me aagya aapko
Bhoot badhiya"
Makes me feel that I am understanding
Arit yeh galat hai yeh sab mat kar tum jaiso ke wajah se ham ldko ko bhi shrminda hona padta hai...
Hame bhi galat samjha jata hai
Subham bhai tumara bhi syllabus piche chal raha hai kya mere to chal raha hai samajh bni aa raha kya karu bhai
@@MBBSsumitsharma6043 nhi bhai revision ho rha hai humble revision for sharping my mind and brushing my thinking capacity only that
Please shubham bhai help 😭😭😭me
After 4 yrs today I am watching tis video alakh sir😊😊😊 hat's off to you...my favourite chemistry and physics teacher😇😇
After 5years me❤ no one can replace alakh sir in this era
Log 1 - 1.5 ghante ka video bnate h to dekhne ka b mann ni krta....but jb aapki video dekhti hu to 1 ghanta pta hi ni chalta kb khatm ho gya.....Ur way of teaching is sooo good👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏Thank you sooooooooo much sir for teaching us😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃
May God bless u😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊
Rigt sir are osm
❣❣❣❣
you said right
🙋🙋🙋
You are rt
Lyman Series : Longest 1216 A
Shortest 911 A
Balmer Series : Longest 6552 A
Shortest 3644 A
Paschen Series : Longest 18740 A
Shortest 8200 A
Bracket Series : Longest 40488 A
Shortest 14576 A
Pfund Series : Longest 74536 A
Shortest 22775 A
Humpherry Series : Longest 123615 A
Shortest 32796 A
Note : The values that a I have calculated are approx. and A represents Angstrom.....Thank You...
tq bro 😄
@@rahulkhinchi7722 welcome bro..
@@Prateek_0410 dil khus kar diya tune toh 🤗
@@divyaraval1909 ThankYou...
Do we really need to remember this??
Old lectures are gold❤️💫
Agree or not?
Yaa man
sahi bro
Old is gold🙂
If teacher is gold
Agree 👍👍
Way of teaching - outstanding!
Content: superior!
Speed of completion: accurate!
Interaction: admirable!
Fees: null!
Dream? : No!!
Alakh sir thank you so much!!!!✨🙂
👍👍👍👍👍
Dream: every kid of India became an iit ian or go in medical line..
Also every kid should become something if he teaches him or her
@ASTRONAUT nhi bhai unka yahi dream hai ki India ka har bacha educated hojaye
Lagta hai sir ko follow nhi krte aap
@@Uttam_Sarvashreshth ❤️❤️❤️
And comment owerpowered
Never thought a youtube lecture can be this much interactive
Hats off to your teaching style sir!!
old comment! also did u expected him to be at this place?
@@sorrym8958he is great. ..
Loves for pw
Neil BOhr - Stated his 6 postulates in one lists in books .
Me - Scribbling more than 4 pages for his postulates.
I made 10 page of his postulates ( counting both sides of a page )
But in physics wallah it's completed in six sentences.
😁😁😁
@@techtoysandprograming9821 Its not a flex you weapon😭😭😭
its based on the fact that how much are you able to grasp...if you look closely he's covering a lot outside the book because this video is also meant to help the JEE/NEET students.
Assuming you're in 11th, last video's Kinetic energy, radius etc's derivations were not at all important but from competition's point of view they're.
@Harsh Dhanka exactly 💯 👏
Hey...can you tell me if this much content is sufficient for neet 2022?
46:49 This completely breaks our heart when we study the complete Bohr's model and get to know that it was a failure. 😢 We have to study new theories now.
It wasn’t a failure it works in real life calculations bruh
Don’t you see it is useful in calculating wavelengths and energies in this spectrum concept?
@@The_Devil_Chariot yet it failed to explain atomic bonds and spectrum of atoms other than hydrogen. It is a good model, but still inaccurate
@@The_Devil_Chariot only for hydrogen tho
Then, we need to start learning schrodinger's model of an atom 😢
Sir ka favorite dialogue :
1) Hello baccho
2)Dheeme Dheeme aapko bhi ye yaad ho jaye
th-cam.com/video/9-VwjU4OKLk/w-d-xo.html
Ye teacher keh rahe hai ki pw ka koi level nahi hai 😡😡
@@piyushsinghjeeaspirant3650 ye teacher khud apne life mein kuch kar nhi paaya, toh pw ko ulta fulta bol rha h,
So just chillll yaarr 🤗
Are sir ko kuch mat bol,, 2 se 2 mar dege 😁😁😁
@@piyushsinghjeeaspirant3650
Ignore such peoples ! Focus on studies
@@md.sakeel9772 wo janta hai bt bechara bol hi nahi pata....😰
Mom : my son never attend tution outside .He reads online .
Modi ji : ye physics wallah h kya?🤣
😂😂
@@sania9575 😅
I have seen the same comment in any other video😂😂
@@procrastinator9608 🤫may be
@@procrastinator9608 I also
Best TH-cam channel for jee/neet preparation Thank you sir
th-cam.com/video/9-VwjU4OKLk/w-d-xo.html
Ye teacher keh rahe hai ki pw ka koi level nahi hai 😡😡
@Fahad Zafar ye har jageh aise hi kerta hai
@@piyushsinghjeeaspirant3650 don't worry ..they r sort of insecure from him...that's it..bat unki hoti h jinmein koi baat hoti h ..so PHYSICS WALLAH IS BEST..
@@nandinisharan7572 well said
th-cam.com/video/7I35XLM4z6I/w-d-xo.html
Sir honestly I've taken subscription of physics Wallah but still studying from your old videos on TH-cam........well I guess this shows that pw is not an app or channel it is an emotion.......you understand us...you know the things which we don't even know about ourselves we love you sir......
Hai na may bhi online lecture me samgj hi nhi ataa waise kon se batch se ho tum
Hii
Same
Really Sir, I do not write comments frequently but this time you literally made me emotional to a great extent that how much you care for us that every video is detail oriented ... THANK YOU very much for this unasked help which is making hidden 'bright students' to come up at National Levels...!
Even international level...sky is the limit to the students of alakh sir...
Alakh panday sir be like.....
BAS KAR PAGLAYE RULAGA KYA
@@sandipkunjir81 say in English
PLAYVIEWS:- Yes Sir, off course. I'm also agree with this person.
Bhai sahi kaha.... lekin English tikh karooo... I do
Sir, you are amazing. You are the best physics and chemistry teacher in India. Even teachers of great educational institutions like FIITJEE, ALLEN, RESONANCE, VEDANTU and UNACADEMY are nothing in front of you. We salute you and your efforts.
Those who agree please comment to support our ALAKH PANDEY sir.
Yes, you are right I too had learnt from unacademy and Byju but alakh sir teaches best of the best!!!!
I was a student at FIITJEE, this sir teaches fantastic then other teachers out there👍
True, I am student of Aak.. but he is the best
Ya m also student of r.......e but I understand only alakh sir teachings
@@selvakumar-qd5pk so why are you wasting your money
Parents: don't watch mobile always
Me: I am studying...
Parents: how can you study from mobile???
Me: by the help of this divine person....
th-cam.com/video/kYd6qQwldFU/w-d-xo.html
Cringe
Rght
I don't think now parents will ask that question, "How can you study from mobile?" .. haha
U will not attend online classes ?? 😂
I stopped watching physical chemistry from current PW and came to learn from your videos because u teach much better than teachers who are teaching now
Same here
Same here 😂
Same here
Han bhai Nikhil Sir se zada accha Alakh Sir ne samjhaya hai ye waala topic
best channel in whole you tube ❤❤
No doubt
Yes
Yeah, true
Yes
Superb
Sir aapki physics to wallah..aur chemistry bhi mashaallah.you are the best sir👌👌
Best chemistry lecture on atomic structure that i have ever heard really. Thank you sir 👏👏👏👏👏👏👌👌👌👌👌👍👍👍👍👍
Heard or seen...😂😂🙃
@@backyardtortoise. both actually 😂 . in my case i even felt it 😅
@@nemesissybarite7403 same bro
bhai Sayd tumne learno hub . Com ka lecture nhi dekha hai islye kh re ho ye
Same here brother
I left my paid pw batch and came here to watch these old lectures
These old lectures are much better than current pw
Hi
exactly😅
damn
Yeah man me too
I just hope I could like it multiple times
Best lecture ever on atomic spectra
Yeh 2 year puraani videos aaj bhi itni jyada help kar rahi hai..... U r great sir ❤
For me this video is 4 yrs old... But still the best content and making notes only from the lecture. 🙃
4 year old ho gyi hhh
Sahi bola yaar 👍
Sir you are just like a ray of hope who inspired those students who can't afford the fee of big institutions like Allen , fiitjee like that. I thank you from the core of my heart
Deepwords😊
हाइड्रोजन स्पेक्ट्रम th-cam.com/video/aU24SE6WZXI/w-d-xo.html
From the core
So fabulous words , Amazing😊😊😊😊😊😊
Amazing bhai👌👌👌👌👌👌
Baki sare TH-cam channel ke 1 se 1.5ghante ka video kitna bore karta hai but alakh sir ke to 1 ghante ke video mai itna maza aata hai ki 1 ghanta kab nikal gaya pata bhi nahi chalta.
Hats of to the teacher who teaches students without asking to like or subscribe to there channel 🙃🙃👏👏👏👏👏
37:24 Sir, Lyman series 3600 nhi 1216 tk h
Yeah!!
Exactly...
@@shivanshkumar8877 Bhai ye sab Apne naam ke aange class & Roll No kyo daale rakhe ha
@@notevencalm uski school TH-cam live pe hoti hai
🤣
@@notevencalm ye log google meet mai apna classes karte h. Isliye inhe apna naam and roll no. rakhna parta h.
Sir you explain the derivation of formulae in an amazing manner and the concept is now crystal clear to me. My chemistry teacher just gave the formula at 16:41 and told to learn it. Sir aap katayi ZEHER padhate ho.
Sab ke chemistry ke teachers ese hi hote h
But alakh sir is differet
Boshdi wale sir zeher nhi amrit padhate hai
@@MamtaSingh-yx7ir lol
@@MamtaSingh-yx7ir Gazab reply, xD! 😬😅😂
Thankyou so much sir ki aapne hme free of cost lectures provide kiya hm apne financial problems ke wajah se allen akash jaise coching ko afford nhi kr skte....
But sir aapke lectures se hm kisi bhi competitive exam ko crack krne ki himmat rkhte hai kyu ki aap world ke best teacher ho....
School mein jb yeh chapter padhaya gya tha to hme hawa bhi nhi lga tha
But sir aapke lectures ko follow krne ke baad yeh to ab halwa sa ho gya hai
Thank you so much sir
Mein aapki jitni bhi tareef krlo kam hi hai sir mere paas ab shabdho ki hi kami padh rhe hai aapki tareef krne ke liye
And finally sir aap mere ideal teacher se bn gye hai.....
Yes
NUT HIS VIDEOS ARE WAY MORE BETTER THAN TEACHING IN ALLEN OR AKASH
U r financially weak not us 😏
@@salonityagi2704 Dumbass he is not including you he is just representing the majority of the viewers that is why he is stating that and second of all Sirs main intention is this only to give as much of free lectures to those who can not go to those big fat coachings
@@salonityagi2704 Why are you being rude dude !
This man deserves a *Noble Prize*
Varat Ratna😎
@@minhajmallik8795 DONT MISPROUNOUNCE ITS B-H-A-R-A-T RATNA 🟧⬜🟩
Sir by listening to your classes I can understand the topic much efficiently, because your way of explanation is too good sir. That is the reason behind 2.8 million subscribers sir. I like the way of your explaination sir, its too good.
Now 3.98 million subs😃
@@MN-gk8cj now 4.13 million and counting.... 🤣🤣
Now it is 7.6 million
Now it's 7.72 million
Broo now it's 8.6m
Really sir 50 teachers ek taraf kardo aur apko ek taraf krdo, tabhi aap 100%aage nikloge unse padane me, kyunki sir aapke padahane me sach me feel aata hai
Ashutosh Yadav yes
very true bhai ..........
Jyada maska mat Laga .....😂😂😂😁😁
Really
sir
Anyone watching it in 2021, I learn more here then online classes . Thanks sir
me toooo :)
@@DevayanD HAHAHAHA ur wish😂😂
2021
No 2021
2021 bro...😉
Till today this lectures are best...❤️❤️❤️
Sir how do you got to know that we are understanding or not??? 😕😕
Really Fabulous.
@@marwadimedium 🖕
Ye Alakh sir h .
Ye antaryami hai👍🤯🤯😇
He speaks the language of gods XD
Sir is connected with his students ...he got to know what they want ...🤗😍😍
Inki explanation itni achi h ki kisi ko bhi samajh aa jayega 👍🏼🙏🏼
Started my journey for cracking NEET...
I understand very well from these lectures
Thanks alakh pandey sir for all ur efforts..
Which year are u going to appear for neet?
@@Noonejogdtunv 3033
@@rakhirathore5382 kuch bhi😂
Me also
Started with cracking NEET and came to youtube to watch the concepts uh missed by missing concepts in class u will crack NEET .. And commenting here about cracking NEET .. U are great bro .. 🔥🔥🔥🙆🏻♂️👌🏻
Best coaching in you tube ( physics wallah)
In india bro
हाइड्रोजन स्पेक्ट्रम th-cam.com/video/aU24SE6WZXI/w-d-xo.html
Hey
Someone is right to said that old is gold 🥇🥇🥇
These white board lectures are GOLD for our studies
Muje hanesha se lagta tha ki padhai bahut boring cheez hai aur hai bhi par apka video Dekhne ke baad ab pata Chala ki padhai me bhi enjoy ho sakta hai
The way you teach is really unmatchable.
Hands off to you sir
Aap padhate to accha ho hi aap itne acche se baad bhi karte ho
jab Mai free hota hu to sochta hu Chalo alakh sir ki ek lecture padh leta hu ejoy bhi ho jayega aur padhai bhi ho jaayega
Thank you so much sir for your hardworks💕💕💕❤️🙏
Hmesha nahi hamesha or always ok
Sir ne aapki aankhein khol di
Sir I don't think that u r my teacher I think that u r my friend to explain in a very easy way. Thank u so much sir for teach us to understand all the concept. U r a great person.I m fully confident to achieve my goals when I m learn with u sir.Again thnx a lot sir
हाइड्रोजन स्पेक्ट्रम th-cam.com/video/aU24SE6WZXI/w-d-xo.html
We can also find the no. of spectral line by this trick n(n-1)/2 where n is the number of the final spectral line . For instance, from 4 to 1 ,here n=4 ,so 4(4-1)/2=6 spectral lines
Thanks Didi
@@sanjurohilla113 welcome
th-cam.com/video/9-VwjU4OKLk/w-d-xo.html
Ye teacher keh rahe hai ki pw ka koi level nahi hai 😡😡
@@piyushsinghjeeaspirant3650 jiska level nahi hota hai wo jyada phad phadata hai. Everyone knows who is best and successful. Don't worry and do best in exams.
@@ritasahu3222 Your formula is only applicable when an electron jumps from nth shell to ground level.
First take complete knowledge........don't write shit everywhere 😒😒😒😒😒
37:5 he never pretends to be most knowledgeable person..this makes him unique ..even in 2022 we wath this video..thank you sir..❤️
I m just speechless....I can't express.. u teachings r just superbbb, amazing👍👏👏👏👏👏👏
हाइड्रोजन स्पेक्ट्रम th-cam.com/video/aU24SE6WZXI/w-d-xo.html
Wtf 🤣🤣🤣🤣Your english is so bad.You study in a hindi medium school...🤣🤣🤣🤣
Death Rampage bro who are you saying this to?
@@adityadua6867 To Ritesh chhoker you duffer.......
Sir u r amazing my pray is aapke 10 million subscribers Jodi se ho jaaye who want same line 👍👍
....... Not in my comment.... But sir videos 🙏
Wtf........You have so much typing mistakes ....🤧🤧🤧🤧🤣🤣🤣You are uneducated or you study in a hindi medium school
It's k with your typing no problem.But whatever u wanted to say was just fantabulous.And the one who is commenting on your English.For your kindest information even your English is bad.The sentence you used is completely incorrect
Death Rampage bro first of all it’s not typing mistakes it’s grammatical errors and his English is way way better than yours
Death Rampage itni kharab English ay hay tauba tauba tauba saara mood kharab kar diya
@@adityadua6867 What is the meaning of 'Jodi' you fool.Its clear he wanted to write 'jaldi' and that would have been a typing error.Bastards like you love to humiliate themselves🤣🤣🤣Aditya 'piece of shit' Dua💩.........that's your new name...
I haven't thought that I will understand this chapter in one time without revision
Thanks sir
Same
Who's watching in 2024 ?
🤚
Hehe
Me
Count me in
Who's here after NTA case??
Mee 🙌
When I come to PHYSICS WALLAH.. doubts BE like `PATT SE HEADSHOT`........
😂
@@potatofries4257 😉
@@chinmayjoshi2976 😊
You are degrading teacher's teaching skills. Maybe you should check your comment again.
@@potatofries4257 gbbvivbi
39:03 lymann series should be from 1216-911 Angstrom
th-cam.com/video/9-VwjU4OKLk/w-d-xo.html
Ye teacher keh rahe hai ki pw ka koi level nahi hai 😡😡
Thnx, i was confused about the specific answer
Bhai balmer ka bhi bta de plzzz. Max aur minimum dono... Plz jldi btiyo.
@anubhav jain range is always written from lower limit to upper limit. That's why sir has written from lower limit to upper one. Hope you got it 👍💯
@@medicoholic_ZEE th-cam.com/video/pANNI0qLuvg/w-d-xo.html
Alakh sir ke sath ultimate fun 🤩
Bas ek baar dekh lo agar acha na lage to dislike kar dena.🙏🙏👆👆
Alekh sir will surely made a world record. Great
Your teaching is very good. Your teaching style or technique is unbelievable.
Sir. I understand all things which u want to make insert in our minds just feeling very cool. Salute u sir😊😊
You are a mind blowing teacher. I understood each and every word you taught. Thanks 😎
That's "theek hai" I can feel that .....
Ekdum theek hai......
God bless u sir ....
No one can't match the teaching level of Alakh sir ❤❤
Hats off sir, what a beautiful explanation of the concept. Your passion to teach is clearly seen....thanks a lot
Sare teacher agar sir☝️jaise hi to India ka bhala ho jayega👌🙏👍👍👍👍
স্যার আপনার প্রায় সব ক্লাস গুলো দেখে থাকি।
ভালো কিছু শিখতে পারি ।👌👌👍👍
Bhai bengali sir nhi samaj sakte hai😆😆
@@hritankarbarman9843he said he use to see all lectures nd he learn something
( I m frm tab so it automatically translated lol)
@@frooti8696 lol it also translates in mobile as it's not tab its youtube feature
@@rakeshtripathi1411 sadly my phone don't ve this feature T_T well there r some features for different devices which don't work in all
At 36:25 , firstly line from n=infinite to n=1 has to come not from n=2to n=1
As we go from left to right , wavelength increases
As we know difference in energies is inversely propotional to wavelength
Therefore for max energy , wavelength should be smallest
,Which is from n=infinite to n=1
Therefore , firstly n=infinite to n=1 line will come
Hope you guys understand
I got really amazed for the fantastic shortcuts Sir gave! Sadly, I wasn't aware of this beautiful channel in my 11th. And not even in 12th( 2019-20).😑( It could have helped me in boards physics for calculation in questions from Modern physics......rather I couldn't do the calculation part)
Regret!!!!
Anyway, I guess , it will be really helpful to me for Neet 2020!
same here i wish i would hv seen his vids earlier
regret
Gud
I m also using moderns physics and chemestry for class 11 is good for jee preparation
th-cam.com/video/9-VwjU4OKLk/w-d-xo.html
Ye teacher keh rahe hai ki Physics Walla ka koi level nahi hai 😡😡
All the best for ur NEET.. 🤗
My mind receives chemistry only from Alakh sir's voice 🙏🙏
The way alakh sir interacts with students while teaching. Best teacher ever 🙌🙌❤
Absolutely agree 🙋
These old lectures are short with a lot of information in a short time and obviously alakh sir hain toh smajhne ki toh full guarantee 💯 ❤
DEAR SIR
PLEASE MAKE VIDEO ON ABSORPTION SPECTRUM AS U HAVE TOLD .I REQUEST U SIR.
THANKING U
Likhna sikh le pehle
Thanking "U"
likhana sikh le pahele samje
@@premlataupadhyay321 don't cry
@@premlataupadhyay321 don't cry
@@premlataupadhyay321 😂😂 bilkul sahi bola
His fingers Tak tak 🎉 avoids distraction ❤️(like it if u have not seen this in comments section)🔥🔥
I cant express my level of happiness after watching your vedio, you clear my all doubts....
Really a magnificent explanation.
Literally Sir you are genius your teaching is marvellous love your teaching 😀😀😀😀
HAPPY TEACHERS DAY TO SUCH A GR8 TEACHER.!❤
Every student deserve a teacher like him👍❤
*Jitna bolun..utna kam hai sir apke liye!!*
_You are really doing great..!!_
_It feels..that a bond..n connection kinda thing generated between you and us!_
Your way of teaching is... *AMAZING*
*God bless you* ⭐
Watching in 2022 . Old is Gold. Best is that we came rewind and understand how many times we want to .
Sir thank you so much you best define a "TEACHER"...
35:30 sir the correct answer is 6559.2 when 36/5 is multiple by 911
Sir you are legend hats off to you sir 🙏🎉 Sir you teaches crystal clear the concepts of both chemistry and physics.
5:05 BEST SLIDE ....BEST INFO IN ONE SLIDE
Reel Shaktiman (serial) = Mukesh khanna
Real Shaktiman =Mr Alakh pandey....... Alag pandey sir
Really I now 😘 atomic struckchar
@@worldaffair1450 structure*
alakh pandey not alag pandey
@@kartikeygupta9183perhaps you couldn't get sense of words..... Otherwise everybody know his name .
u couldnt get me i was just making the mood lighter u took it another way sorry if it hurts u
Kya padhaya hai sir.....
Love from class 9😍😍😘
Bhai tu yha kya kar rha he?!!
bhai Bhai tu yha kya kar rha he?!!
Tu aapni class ki taraf ja re tu kya abhi se xi ki tayari krega
Sir literally u are a legend in starting I was quite confused but by ending its clear!!😍😍
18:00 Value of R should be (1.09× 10^7) . Sir by mistake wrote 10^-7 .!
sir aapne bataya ki electron try to remain in lowest energy level lekin sir agar kisi atom me 4 orbits to 4th shell wala electron energy gain karke kahan jaayega kyoki wahi uska lowest energy level hoga pls reply ? BY THE WAY YOUR WAY OF TEACHING IS EXECELLENT
it will escape the atom , hence ionizing the atom . that is why when dealing with reactions and stuff we normally take into consideration the valence shell or valence electron because only the valence electrons will escape the atom when given energy and take part in things happening outside the atom as they have no shell of higher energy to jump to
Great lectures, much consideration for state of mind of student, keep it up brother, regards from Karachi, Pakistan.
Sir aap k lectures12th physics k atom aur nuclei ko cover bhi cover kiye hain mostly , it's not only for 11 th it's for 12th BONUS, U R THE BEST Teacher sir best.
The simplicity makes these lectures special ❤
I think you're the best physics as well as chemistry on TH-cam and where ever..
Best teacher for me that gives me knowledge without cost
Making student's future bright without any fees
Salute to you sir ❤❤
19:13 alakh sir cutest face expression ever 💕💕💕😘🥰🥰🥰🥰🥰🥰
Sir wo 37:35 me 911 A° - 1216 A° hai..
😊😊
You are a real hero for us who honestly build our career
I just realized that this video and the earlier three ones were made on the same day!! imagine how exhausting it must be to teach to a camera lens alone in a small room..he is REALLY giving his best to keep the quality of content high and understandable and he is succeeding amazingly! His way of teaching is soo much fun AND informative at the same time!! thankyou soo much sir! I respect you a lot for sharing your knowledge and your hard work
right
Alternative trick for finding wavelength (w) (if you forgot the short trick).
Let's start with an example
Ques. An electron is emitted from ground state to n = 2 level. Then find the wavelength of the photon
Sol. First find the energy in the ground state i.e. -13.6 eV
Now find the energy in the second shell i.e. -3.4 eV
Now find the energy required so that the electron emits from ground state to second shell
∆E = -3.4 eV - (-13.6 eV) = -3.4 eV + 13.6 eV = 10.2 eV.
Now, E = 12375/w (for better calculation take 12400 instead of 12375) therefore the equation becomes 12400/w (in Å)
Now put the value of w in this equation 12400/10.2 Å = 1215.68... Å ≈ 1216 Å
Please like my comment. Bohot mehnat se type kiya hai.
Thanks bhaya💅
Alakh sir teaches very well than all teachers in different institutes or TH-cam channels.🔥🙏
One of the main reasons physics wallah is very successful is becoz he doesn't use too much English to show off, and in Hindi we can deeply engage with the topic and concept.
since when is using english "showing off"
LOVE YOU SIR 💕❤️❤️..
MY LUCKY DAY WHEN I FOUND YOUR CHANNEL ........
I m also a teacher of science (tuition)... teaching is my passion...but due to some neglecting human & dominating person's nature of thinking I don't get student's to teach.... but I m happy to see you...you are the inspiration for me