Atoms Class 12 Physics | NCERT Chapter 12 | CBSE NEET JEE | One Shot
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Timestamps:
0:00 Introduction
0:40 Atom
1:53 History of Atom
3:22 Dalton’s Atomic Theory(1808)
4:22 Dalton’s Atomic Theory: Limitations
5:09 Atomic Models
5:47 Thomson Model of Atom
7:11 Introducing α, β and γ-rays
8:21 Rutherford’s Experiment
12:45 Rutherford’s Experiment: Conclusion
20:18 Rutherford’s model of Atom
22:09 Rutherford’s model of Atom: Electron orbits
27:14 Rutherford’s model of Atom: Limitations
29:22 Atomic spectra
32:10 Emission & Absorption Spectra
36:24 Continuous & Quantized Spectrum
39:41 Developments leading to Bohr model
40:31 Bohr’s Model of Atom
42:46 Line spectra of Hydrogen
53:02 Bohr Model of Hydrogen atom:Postulates
1:00:54 Bohr Radius
1:03:54 Total Energy of electron in Hydrogen atom
1:06:50 Bohr’s Model of Atom:Limitation
1:08:28 Heisenberg uncertainty principle
1:10:09 De-Broglie’s hypothesis: Wave-particle duality for matter
1:11:20 De-Broglie’s Explanation of Bohr’s postulate
1:13:44 Problem1
1:15:34 Problem2
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Пікірлер: 1 600
It is my first time I saw a teacher who never gives a chance to create any doubt in my mind.... I really appreciate your teaching skill🙏............
@Abid_131
2 жыл бұрын
Jab samj nhi ata kuch too doubt kysay hoty
@puppyvsdogs5097
2 жыл бұрын
1:01:31 can someone explain where did that 'r' go?
@jumbomkami1161
Жыл бұрын
@@puppyvsdogs5097 By mistake she forgot to write r, but she corrected the expression already.
@rupalimam3342
Жыл бұрын
@@Abid_131 1
@Class-lf6cf
Жыл бұрын
kzread.info/dash/bejne/eGympcWEc8rPZrQ.html 😕👉😨
i would drop my comment hope someone likes it IMP TOPICS 27:06 - RUTHERFORD MODELS 40:23 - Developments leading to Bohr model & Bohr's model of atom 42:56 - Line spectrum of hydrogen 53:23 - Bohr's model of hydrogen atom : postulates
@jugal6970
6 ай бұрын
What about the rest?
@ikrishi_
6 ай бұрын
@@jugal6970 learn the chapter from ncert wallah 😅 best Hain
@funkyguy1950
4 ай бұрын
@@jugal6970line spectra of hydrogen energy band series questions regarding bohrs postulate
2x wale iss line mei aa jaye 😂
@dakshali.gupta.
8 ай бұрын
3x😂
@rose_dust
8 ай бұрын
😂😂
@gkillergsaurabh427
8 ай бұрын
😂😂😂
@lovegamer_FF_
7 ай бұрын
2x😅
@Aditiyadav79.
7 ай бұрын
Completing whole physics in 24 hours because tomorrow is pre board 😅😂❤
Timestamps: 0:00 Introduction 0:40 Atom 1:53 History of Atom 3:22 Dalton’s Atomic Theory(1808) 4:22 Dalton’s Atomic Theory: Limitations 5:09 Atomic Models 5:47 Thomson Model of Atom 7:11 Introducing α, β and γ-rays 8:21 Rutherford’s Experiment 12:45 Rutherford’s Experiment: Conclusion 20:18 Rutherford’s model of Atom 22:09 Rutherford’s model of Atom: Electron orbits 27:14 Rutherford’s model of Atom: Limitations 29:22 Atomic spectra 32:10 Emission & Absorption Spectra 36:24 Continuous & Quantized Spectrum 39:41 Developments leading to Bohr model 40:31 Bohr’s Model of Atom 42:46 Line spectra of Hydrogen 53:02 Bohr Model of Hydrogen atom:Postulates 1:00:54 Bohr Radius 1:03:54 Total Energy of electron in Hydrogen atom 1:06:50 Bohr’s Model of Atom:Limitation 1:08:28 Heisenberg uncertainty principle 1:10:09 De-Broglie’s hypothesis: Wave-particle duality for matter 1:11:20 De-Broglie’s Explanation of Bohr’s postulate 1:13:44 Problem1 1:15:34 Problem2
@sakuuux3
8 ай бұрын
thanks!
@parthsuyal4888
5 ай бұрын
Why bro? We could see this in the video only
@Vnnnlll
4 ай бұрын
❤
Chapter seems more interesting when you are studying just 5 hrs before exams 😂😂
@noobbutsmart2326
2 жыл бұрын
Don't worry boi, we still have 10 hours, we will prevail
@shravanpatel0728
2 жыл бұрын
Mai toh pura samay estimal karunga
@hardikbs3038
Жыл бұрын
So relatabke Today exam preboards
@vedanggggg
Жыл бұрын
@@hardikbs3038 lol bhai mera bhii
@nerdyme8943
Жыл бұрын
Heehehe
1:03:36 there is a silent correction there. Ma'am actually forgot to put 'r' in that first orbital equation, although they corrected but it went unnoticed. So this is for those who were confused.
@MultiRambo008
10 ай бұрын
Exactly
@A28721
7 ай бұрын
🤓
@riyajain3281
6 ай бұрын
THANKS
@user-oe1mt8ib6x
6 ай бұрын
Yes
It's specially made for students who wants to complete full physics in exam gap like me 😄😄thanks mam 🙏🙏
@shivanggarg2270
2 жыл бұрын
kitne ch reh gye ?
@kirtiyadav7696
2 жыл бұрын
Aapke pas notes h kya...kha se milege notes
@ranirp1218
2 жыл бұрын
@@shivanggarg2270 4
@shivanggarg2270
2 жыл бұрын
@@ranirp1218 nhi tumhare .. u r revising or doing for 1st time?
@rasenshuriken2021
2 жыл бұрын
@@shivanggarg2270 1st
4th March 2024 valo attendance👍👍👍
@vintage246
4 ай бұрын
😂 bhai usne sahi likhi hai tune galat likhi hai
@multitasksunny1993
4 ай бұрын
Bhai 5 din ke gap mai kuch nhi pdha hu
@multitasksunny1993
4 ай бұрын
1st time pdh rha hu kaam pass hojaunga na
@balpreetbhullar9091
4 ай бұрын
🤘🏻🤘🏻
@_future.millionaire
4 ай бұрын
😂
I was totally depended on your teachings for chemistry and physics through out my 12th and yesterday I gave my Physics and before that chemistry paper.... I gave an excellent performance more than my expections and that's only bcoz of you ma'am thanks a lot for making "SUCH VIDEOS FOR FREE "🥰🥰🥰❤️
@puppyvsdogs5097
2 жыл бұрын
1:01:31 can someone explain where did that 'r' go?
@way_to_high5303
Жыл бұрын
@@puppyvsdogs5097 that'll come later mam corrected it observe it
@Class-lf6cf
Жыл бұрын
kzread.info/dash/bejne/eGympcWEc8rPZrQ.html 😕👉😨
@ronaldoforever4715
Жыл бұрын
Is this your fixed channel for physics and chemistry have u completed your syllabus?
@yashmistry9683
Жыл бұрын
@@ronaldoforever4715 Yes I think you are 2023 aspirant..This series contains last year's videos. Thus all chapters are available
I am preparing for neet and doing revision, Guys trust me she covered every point perfectly.
@aaryaa-i7x
Жыл бұрын
So this is enough for cuet exam???
@trishafilm
Жыл бұрын
Impact parameter nhi hai isme🤡🙂🥲
@VivekYadav-pr6sj
6 ай бұрын
Yes I agree with him because I am also an neet aspirant😅
@111kiraaa
5 ай бұрын
@@VivekYadav-pr6sj so this is not enough pov to neet???
@user-oy5bd2uz8o
4 ай бұрын
Haan mera b board ka exam tha kal paper tough aaya tha but mam sa jo jo chap pada tha wo chap k sara qs aaya
The only lifeline we have - Roshni mam!
Who else got their boards in 5 days? ☠️
@Aswathyddd
4 ай бұрын
me bro meeeeeee!!!!
@soumypaliwal
4 ай бұрын
Did She covered derivations in these one shots?
@ramshrivastava563
4 ай бұрын
2 days....😭😂
@multitasksunny1993
4 ай бұрын
Bhai kuch nahi pdha hu
@carelessgaming6833
4 ай бұрын
@@multitasksunny1993us bhai us 😅
This is the real one shot video...(with detailed explanation in less time)
i was Watching your lecture of dual nature of matter and was wishing that u'll upload lectures of atom and nuclie... and i am so happy to see this, thank u so much mam 💗✨
@puppyvsdogs5097
2 жыл бұрын
1:01:31 can someone explain where did that 'r' go?
@puppyvsdogs5097
2 жыл бұрын
@Shikha Chaurasia ohk tq
1:01:31 v2 = ze2/ 4 pi Emr ... the r was missing. Later it was corrected at 1:03:40
At 1:03:37 correction is made by putting r in every step in eqn. For velocity
@abhinavverma1790
Жыл бұрын
yeah same thing
@mamtasingh4828
Жыл бұрын
Chlo koii milla jo concentrate hoke dekh rha h purralecture wrna comment section me toh chutiye hi bharre h sirf..... ya toh bio walee h jinhhe maths aata hi nhi h😆😆
I must say your editing team is superb...means they just turned your lectures into an interesting subject .....Animation , background is just WOW.🥰
@lets_do_it9728
9 ай бұрын
She edit all her videos on her own way that's why these vedios are beyond our expectations, she don't have any editors team .
@neelimakola3047
6 ай бұрын
@@lets_do_it9728really great asalu madam
Appreciating your and your team's great efforts that in so less time you are doing everything you can and every concept is just crystal clear 3 out of 7 chapters √√ Thank you so much ma'am
@puppyvsdogs5097
2 жыл бұрын
1:01:31 can someone explain where did that 'r' go?
@krishnapriyams149
Жыл бұрын
@@puppyvsdogs5097 She missed it ...but she correcting it while equating( I ) and ( II )
@adityatiwari2764
8 ай бұрын
where is impact parameter , distance of closest approach and etc.....
Anyone for 2024 😂🎉
awesome lecture . your hardwork and effort behind this is showing in this video. thank you mam.❤🧡
Mam bohr's radius me Jab v(sq.) Ki value nikali to denominater me nahi likhna kya !!!🤔🤔🤔🤔
Thank you ma'am. Its a request plz upload 15th May - Semiconductors 16th May - Wave Optics 17th May - Electromagnetic waves 18th May - Nuclie 19th May - Full Term 2 Important Questions/TOPICS/PYQs revision of PHYSICS. Also if possible kindly upload TERM 2 biology and Maths remaining chapters videos that will help us
@vfxvlog23
2 жыл бұрын
Abe saans toh lene de!!!!!
@mirzaibrahim701
2 жыл бұрын
bio maths?
@abhaypanda16
2 жыл бұрын
@@mirzaibrahim701 PCMB student 😅. By the Way Thank you for so many Likes 👍
@Dream-fb4vd
2 жыл бұрын
@@abhaypanda16 same 🥺
@nandhuisstudying.....8602
2 жыл бұрын
me too😥 biomaths🥺
Thank you so much ma'am. Specially for making vids on atom n dual nature. Pls do nuclei too!! Appreciate all ur hardwork ma'am you are angel.
19:10 paranormal activities reported😶
@gauravshrivastava6514
2 жыл бұрын
😂😂 Bimal bolo juba kesri
@swapnil8292
2 жыл бұрын
@@gauravshrivastava6514 😅
56:37 heh.. mam ne ek baar mein hein kar dia, so basically E = hnu => h c/λ [nu = v] E = hc/λ E = 1/λ hc Eλ = hv λ = hc/E 1/λ = E/hC
Mam my father just respects you so much. He cant stop appreciating you and your team. It needs a lot of courage and needs a lot of hard work for creatinf long videos. Hats of to you mam. I thank god for giving us a teacher like you
Kis kis ki physics ki preparation nhi hui
@Saifkhan10309
Жыл бұрын
Me
@rkgaming6855
Жыл бұрын
Mee
@anamzehra2349
4 ай бұрын
Aise comments krte rhe toh kabhi nhi hone wali preparation Shuru toh kro kuch tab hogi prep.
@deadshotofficial2581
4 ай бұрын
@@anamzehra2349 maine to pichli saal hi krli 76 marks aagye 😂
@anamzehra2349
4 ай бұрын
@@deadshotofficial2581 wah tab kya tadap h tumko yrr
Thank you for giving these wonderful videos 🤗🤗
Tension me padha nhi ja rha😢
@ankandey4758
4 ай бұрын
Tension mat le bhai .... 40+ target kar Jo padha has usko revise kar
Is this video is sufficient for class 12th batch 2022- 2023 please reply
@vaishnavi4061
Жыл бұрын
I guess reading ncert and a few numericals will be needed
Ma'am please Sare chapters complete kra dena aap 🙏. I'm your very old student and always dependent on you. 💓 Congratulations🥳 for 2 millions. This is the best learning platform. Concept always crystal clear #freehaiparbesthai 💕
Thankyou ma'am for your great efforts 🥰 all concepts are crystal clear 👍please upload the electromagnetic waves Ani nuclei as soon as possible 🙏
"Concept wise, this is where the concept lies", thanks for your efforts mam😊😊
@puppyvsdogs5097
2 жыл бұрын
1:01:31 can someone explain where did that 'r' go?
@i.khushii
Жыл бұрын
@@puppyvsdogs5097 same what I thought
@pradipchaterjee9576
Жыл бұрын
@@puppyvsdogs5097 same
@puppyvsdogs5097
Жыл бұрын
@@pradipchaterjee9576 she did it wrong
@puppyvsdogs5097
Жыл бұрын
@@i.khushii it's wrong
Bs bhagwan pass krade🙏😭
@v.glayasree2275
9 ай бұрын
Itna bhi sach nahi batana tha bhai 😭 pass ho jau bas pls 🙏🙏
@Atheist_SP
9 ай бұрын
Us bro us 😢😢
@amaan._.ali0786
8 ай бұрын
Kya hoa bhai result ka ? 😢
@ShivamMishra-dp8zw
8 ай бұрын
@@amaan._.ali0786bhai ye fail ho gay or esne societ kr lii 😭rip bhai 🤧
@nilmanigam2212
8 ай бұрын
@@ShivamMishra-dp8zwgalat ℹ️ mat dho vro
👍👍👍👍👍 Thank you ma'am , Concept hua cristal clear .. Ma'am please upload a one shot of nuclei This is humble request from all student who are preparing for their exam through you videos..
@Sivanii11.11
2 жыл бұрын
kzread.info/dash/bejne/l5pqprRulaSaqJc.html this one is ma'am's nuclei lecture
@puppyvsdogs5097
2 жыл бұрын
1:01:31 can someone explain where did that 'r' go?
@akshat_sri02
Жыл бұрын
CRYSTAL***
Anyone from 2023 💀
@Web_rings
3 ай бұрын
2034💀
@quicksupportforstudy8172
21 сағат бұрын
Yes 3023 💀 ☠
Concept hua crystal clear 👍🏻👍🏻👍🏻 Thank you ma'am 🙏🏻👍🏻
This Lady is having a great hand in Nation Building 👍🏼
Thank you ma'am 😊 your video helps us alot.. And from your teaching I learned many ❤️
1:03:38 was just waitin for those "r" to show up out of the blue🤓
Who is studying just some hrs before their revision class (coaching)
Thank you so much mam for making such valuable videos for free, you are really a superwomen for many students 🙏🙏
thank you ma'am!! absolutely wonderful session..made good notes..now will practice the questions from textbook! thank you again ma'am
Raosni mam ap last moment pr ek angel ki trha ho ek dum mst padhai hai padso mera exam hai or ap se Maine sre modern physics padh liya hai ache se thankyou maam❤❤❤🙏🙏🙏✨️✨️✨️
Deleted Topic cbse 2024 Spectral Series, Bohr Model of Hydrogen Atom - derivation deleted, Line Spectra of Hydrogen Atom - qualitative treatment retained Deleted Exercises 12.3,12.11-12.17
Really I totally understand this video n actually my concept becomes crystal clear as roshni mam said ..
Thank you so much Roshni Ma'am for these one-shots ❤
Very nice lecture ma'am but i would like to suggest you TO USE BLACK BACKGROUND WHILE WRITING (ONLY) Because watching videos at night becomes very uncomfortable to eyes............. But the lecture is awesome ma'am. You are great ma'am
Ma’am, at 1:00:00 while solving the Bohr’s Radius you didn’t wrote the ‘r’ while finding ‘v’. You did add it in the last but students might get confused on where did the r go.
@corrupted_hex5042
5 ай бұрын
Yea i also got confused on it thanks
Words couldn't Express my gratitude towards you..thankyou so much for your efforts mam I studied my whole syllabus from you only💜💜💜
@ironmehra9025
2 жыл бұрын
Cuet..??
mam you are so talented and your videos help us a lot you are the only teacher who teach all subjects PCMB mam you are great ❤️
at 1:01:25 maam forget to put r in equation but formula which she derived is not wrong
@divyanshsharma2645
2 жыл бұрын
exam fear lect help a lot in my preparations , thank you maam
Thank you so much mam for your great efforts I know we have very less time Mam meri apse request h jo syllabus delete hua h from CBSE please hame vo bhi karva dena becoz deleted syllabus bhi ayega hamare entrance exam me.
@ar7229
2 жыл бұрын
Choti bachi ho kiya 😨😂
@GauravIitk22
2 жыл бұрын
@@ar7229 😂😂
@meher9196
2 жыл бұрын
Tq for your effort to India
@simranmanhas5266
2 жыл бұрын
@@ar7229 .... shayad aap ho chote bache
@_Nav_Tweets
2 жыл бұрын
@@ar7229 😂😂
It’s a request to record the other chapters also coz we are completely depend on u Ma’am 🥺🤧semiconductors wave optics nuclei we don’t need electromagnetic waves 🌊
6.03.2023 ko kis kis ka paper hha .....!!!!!
@what_the_hel
Жыл бұрын
Mera
I will miss you mam after 12th❣️ .........................mmmm
Cant believe mam...you are doing so much for us.....will never forget your efforts😭😭😭
Ma'am , your knowledge level is amazing! Thank you for this lecture series!
Mam Now for me this chapter has become easier for me Thank you Mam concepts crystal clear 👍 Mam your way teaching is Amazing
Watching this lecture one night before PRE BOARDS 😀😆😚😗😔😔😜😑🤪😱🤪😱🤪😱🤪😜🤤🧐😜🤨🤫😞😡😞🙁😦🙁🤥🤯😷😷🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯
Concept hua crystal clear 👍
May I am struggling in this chapter from long time And Seriously Concept crystal clear ho gye 🥺❤
watching just one day earlier than board exam 🤣🤣🤣🤣😂😂😂
@yashsharma1076
Жыл бұрын
Me 🤣🤣
@Saifkhan10309
Жыл бұрын
Same
@rkgaming6855
Жыл бұрын
Me 😭😂😂🤣😭
@bewitched2267
Жыл бұрын
How was your paper ? 😅
thnq maam , CONCEPT HUA CRYSTAL CLEAR , it really means a lot ,thnq so much🙏🙏🙏🙏🙏🙏🙏🙏
1:03:30 jaadu... r achanak se baad me aaya😊
1:01:31 can someone explain where did that 'r' go?
4 march -2:00 pm exam 3 march -11:00 pm start study 📚✏ 🤖👾
Kal board paper ha😢
@Siddhant0243
4 ай бұрын
😢😢😢😢
@beluga_08
4 ай бұрын
Abe Aaj ha😂
@Siddhant0243
4 ай бұрын
@@beluga_08 Hahaha
@mgtoxic444
4 ай бұрын
🦂
Crystal clear one day before exam revision
Thanks a lottt mam .....all concepts got cleared and there is no need of reading the physics book as u have mentioned all the concepts....... very grateful mam❤️
Mam please provide us all your one shot notes of class 12 So that we can prepare the syllabus before our exams as making of notes while watching the vedios goes very long. Please mam🙏🙏🙏
25:41 Mam rutherford model mathematical calculation me electron ka charge 'e ' liya tha but jb apne P.E kiya usme electron ka charge ' -e ' ku liya??
1:03:00 who noticed r is missing 😂then suddenly vireo paused and it got corrected👽very chalak bro
@pardipkickmahakalbhakt6549
Жыл бұрын
😂
i'm watching this video live, relaxed eating my dinner , because mam's voice is sooo calming and she explains concepts soooo well!! literally the best teaching platform, mam please make a video on wave optics as well, i am very well sure many students are looking forward to complete their term 2 and are dependent on your teaching skills!!
@czsnippy5048
Жыл бұрын
Sweety apka insta do na😶
@priiiiyayadav
6 ай бұрын
@@czsnippy5048 bade wahiyat admi ho
thank u mam u make the concepts of physics really easy ...🥰 thank u so much to provide free learning platform ...😇
2023-2024 also available😅
Madam in boht radius concept at 1:01:17 why didn't u write r in the denominator??.. Plz explain me anyone
@DurgaSahare-mr5cv
7 ай бұрын
I am also confuse in this
Om om om om om om om om om om om om om om om om om om om namah shivay Ram ram ram ram ram ram ram ram jii ❣️❣️🙏🥰
KCET TOPICS 0:00 Introduction 0:40 Atom 1:53 History of Atom 3:22 Dalton’s Atomic Theory(1808) 4:22 Dalton’s Atomic Theory: Limitations 5:09 Atomic Models 5:47 Thomson Model of Atom 8:21 Rutherford’s Experiment 12:45 Rutherford’s Experiment: Conclusion 20:18 Rutherford’s model of Atom 22:09 Rutherford’s model of Atom: Electron orbits 27:14 Rutherford’s model of Atom: Limitations 39:41 Developments leading to Bohr model 40:31 Bohr’s Model of Atom 42:46 Line spectra of Hydrogen 53:02 Bohr Model of Hydrogen atom:Postulates 1:00:54 Bohr Radius 1:03:54 Total Energy of electron in Hydrogen atom 1:06:50 Bohr’s Model of Atom:Limitation 1:08:28 Heisenberg uncertainty principle
@user-po7lx4vj6g
2 ай бұрын
do you think it is enough for the exam?
Yes ma'am concepts are crystal clear ❤️
Mam your explanation is very good 🙂 with the help of this we can learn everything very fast ☺️ thank you mam ❤️ for lovely explanation 🙏
A good physics teacher should be like you 😊
Kya 12 wale kya haal hai kya lag raha pass ho jayoge ki nhi 😂😂😂
@realityofworld319
4 ай бұрын
Bura haal hai bro😢😢
At 1:01:37 r kaha gya?? V²=Ze²/4π.ε0mr hona chahiye na and 5:52 & 20:00 not radius but diameter of an atom is about 10^-10 and diameter of nucleus is about 10^-15.
My all topics are Cristal clear because of you ma'am.🤗🤗 Thankyou so much ma'am 🙏🙏🤗
@RSAMV9611
Жыл бұрын
Crystal clear
All the best for your physics exam ❤️
1:03:36 , r value is missing from LHS. At 1:03:39 it magically appears. And Ma’am didn’t mention her mistake at all.
@alinasaifi4116
Жыл бұрын
r will come in the equation na ???
AT 1:03:37 CORRECTION IS MADE BY PUTTING r IN EVERY STEP IN EQUATION FOR VELOCITY....
Dear Roshini Mam.... Thank you so much for this wonserful lecture...Lots of love and salute to your hard work and dedication.. We are eagerly waiting for this.. Next wait_ Ray Optics ....
@MedCram_0111
2 жыл бұрын
She uploaded
@RSAMV9611
Жыл бұрын
Wonderful
All-rounder---HARDIK PANDYA❌ROSHNI MAM✔😁🙌
thank you for the video maam :). also there is a correction : BOHR'S RADIUS (1.01) you missed R
Thank you ma'am Concepts are crystal clear 🤗🤗
Concept huaa crystal clear 👍 Thank you so much ma'am 🙏❤️
Madam aap Dual Nature of Radiation Chapter me bola tha Heisenberg Principal me h/2 pi , toh correct kaunsa haye?
There's a correction in the bohr radius mathematical expression. The value 'v' must have radius of orbital 'r' in each step. Thank you!
Best everr one shott in whole KZread Thanks you ma'am for such a great video 😊 @learnohub
Concept huva crystal clear ✨.. Thanks mam 😊
#patanhikyahoga
In topic Bohr's Radius formula of v² was : v²=Ze²/4×pi×Eo×m×r By this formula answer is coming correct but you have skipped r in this formula , still you wrote correct answer at the end.
Mam please reply 🙏🏻 I have a question Apke lecture se padhne k baad ncert padhana bhi zaruri h ??? Ya bas notes bnaa k ncert k questions sol kr lu