STRUCTURE OF ATOM - Most Important Questions in 1 Shot | JEE Main

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[@sagargamerofficial465]

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[@AditiShaw-qc4zc]

Chapter -3 vdeo plsee

[@arjitmaurya5511]

Question 2:06:14 We can do this by simply 1-->Wavelength= h/√2KEm 2--> wavelength=2πr/n Put value of 2 in 1 and you get KE

[@arnavmudgalofficial1688]

thanks buddy , much easiear than sir,s explanation

[@Pkhoka.]

2pirn=nlemda

[@Pkhoka.]

Lemda is de wavelength

[@rkumrawatiya6066]

Same bhai maine bhi aise hi kiya h

[@Gravitational_king_07]

#30:04 ans is 222 & not 2.22 because it's in terms of 10^-21

[@itsroshankingdom3601]

Yes correct brother 🎉

[@somnathroy1938]

Yes

[@AltOurCumrade]

Yes

[@harsha_jagatha]

yes bro correct

[@ankitshorts4360]

1:18:23 manifestation ❌ magnification ✅

[@TheSyndicate-d2z]

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[@44yash60]

bhaiii itne pyare teacher h kyuuu bhaiii

[@manikandankarthik4215]

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[@SatyajitRoul-e8h]

Manifestation ✅️magnification ✅️✅️

[@saatwikshrma]

@@SatyajitRoul-e8h lol

[@abhyudayasharma7142]

1:08:22 It's answer should be 1, as sir hasn't divided the value by 3.

[@apoorvmishra2267]

Yes you are right

[@apoorvmishra2267]

I was also facing the same issue

[@mohammednaveedh5781]

actual answer is 4 since ionisation will happen from n=2 in Li sir has made a mistake

[@abhyudayasharma7142]

Ye question hee bonus nikla😊, kyonki bohr atomic model valid nahi hai Li atom ke liye, woh kewal single electron species ke liye valid hota hai, toh question mein Li²+ hona chahiye tha.

[@mohammednaveedh5781]

@@abhyudayasharma7142 thanks for the info dude

[@itn2055]

5:37 Formula of velocity

[@brawlingvarad1126]

wrong hau bro

[@aadiedits3]

​@@brawlingvarad1126𝗽𝗼𝘄𝗲𝗿 𝗽𝗹𝘂𝘀 𝗵𝗼𝗴𝗶 🦚🦚🦚🦚🦚🦚🦚🦚

[@ShubhamSingh-vw1bo]

Sahi hai bhai​@@brawlingvarad1126

[@rudrasingh3001]

Sir at 30 mins, the answer is asked in 10 to the power -21J, therefore, the answer will be 222

[@rohitpawar0505]

Exactly

[@ShubhamKumar-dc2ve]

yes

[@newrup82]

Abe tmko utna ata hai math karlo Sir sirf concept sahi bata rhe itna kafi h

[@prashantpathak2998]

@@newrup82 kahele faltu ka tej ban rha hai tum.

[@Chandan0828]

Offcourse

[@somu515]

1:01:27 answer is (b) Because it was the postulate of gaylussac not Dalton

[@tony-hh4su]

yeah bro i was thinking the same.....

[@omvispute6185]

yes

[@kaiokee]

gaylussac ke saath gay nashedi kaun kaun karna chachtha hai

[@Hehrandomguy]

Same confusion thanks for clearing

[@nishantirlapur8476]

Thanks bro

[@gamingvideo6459]

who give jee mains in 2024 attendence lagao 😂

[@sahilxsahu]

Kaisa hua exam 😂

[@pravinbhaiyt2748]

mera kal hai

[@Harshiljain26]

Bhai kitne bne😅

[@Csewithsudhanshu]

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[@MANOJKUMAR-yn9mi]

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[@xeesoxee2]

@@ujjwalfromjharkhand 💀Gyan ka chomda mara hua humour leke comment pe raay pes krte huye:

[@ujjwalfromjharkhand]

@@xeesoxee2 achha tum wahi ho na jisko addiction hai

[@AmanSinghKushwaha-gu4us]

5:15 velocity of electrons in nth orbit is :- 2.188 × 10 ^ 8 z/n cm/s hoga

[@RajuKhan-ih7ep]

At 1:04:18 is sir right there?coz 1/4-1/9 is 5/36 how it comes 9/5...can u explain pls

[@agam_jain_0001]

It helps me lot bcoz I m a NEET aspirant and I like the sir's teaching style and his accent

[@AlphaBay33]

for solving ques 2:11:44, we can simple use lambda = h/sqrt(2mKE), and put lambda = 2(Pi)r/n. Then we can get direct answer

[@sahib....]

Bro is actually teaching modern physics in one shot

[@blaze102]

segment of modren physics

[@NikhilKumar-dy5fj]

Bro thinks he's Walter White !!

[@probande22]

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[@NikhilKumar-dy5fj]

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[@ishaankumar4587]

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[@shibamdey9584]

1:01:28 m sir waha second wala option and nhi hoga ?? Kyuki Dalton theory atom pr based thi gases pr nhi

[@anamikajayswal9534]

Yes b is correct

[@onlystudy101]

1:17:37 sir in this que it says "a" h atom so ig ans will be 4

[@nikethasija5012]

1:17:00 2:02:00 2:04:49 imp what represent what 2:11:14

[@arpitsingh4502]

velocity of electron in nth orbit in 2.16 x 10^8 cm/sec

[@komal1397]

5:20 v = 2.18 × 10 ⁸ cm s^-1 hoga, -ve nhi hoga na ?? Plz confirm!! 29:58 answer will be 222 Point aage jayega 👍👍 1:01:10 in option d I have confusion 1:24:21 584 km s^-1 Thank you sir ❤️ 1,5 epoxy pentane

[@tarunrawat530]

219 nhi chelga?? Mna E=1240/lamda se kiya tha

[@komal1397]

@@tarunrawat530 nhi chalega maine bhi pehle usse hi kiya 219 hi aaya but 222 diya hai and mains me 222 hi correct mana jayega Vahi diya hua hai 219 bhi kiya toh incorrect hua Instead of 1240 put 1243 for exact answer

[@divyayadav6748]

Di at 1:01:10 .... isn't answer b or d??? Like I am confused ...can you please help ❤❤🥺

[@tslove7062]

Ans is b

[@Ayush0852]

30:09 ist 222(integral value)

[@ShashankSharma.03.NYT_]

33:08 47:38 54:22 1:01:33 1:32:10 2:06:11

[@PranjulGupta-pd7wd]

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[@ShashankSharma.03.NYT_]

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[@aaryadixut3302]

1:01:26 the answer is (b) cos it is the law of combining gases which was given by "GAY LUSSAC" . Please correct it.

[@deepikanavgire6217]

At last question there is no need of derivation since we have direct formula: energy of photon=1242/ lamda(in nm) or 1240/ lamda(nm)

[@twinstar9892]

17:13 aaj jee mains shift one physics section me aaya tha exact question

[@anujtiwari3036]

Easy tha! kar liya hoga

[@twinstar9892]

@@anujtiwari3036 Bhai me to 11th me hu

[@anujtiwari3036]

@@twinstar9892 oohhh mujhe laga tumhara shift tha wo All the best for future!

[@twinstar9892]

@@anujtiwari3036 thank you and you too

[@saniaverma1170]

1:24:49 We did the same question in arjuna jee 2021-22 with amit mahajan sir. He gave us the formula as n^2. So we can get the same answer 25 without doing the steps.

[@sheikhvalora]

How can you plz explain...

[@zulfikar-pr9nc]

@@sheikhvalora no of orital = n^2

[@adarshkumar8542]

Thank you so much .. maximum concepts are covered

[@manthanpatil7950]

After survesh sir leave ??

[@ViratTiwari-bl2lx]

No

[@BossAbhay212]

05:20 sir velocity mai 10^8 hoga na ki -8 sir 🙏🏻🙏🏻🙏🏻

[@praveenshankar1251]

1:05:48 Ans---->1✅ and not 3❌

[@jeeaspirant700]

at 1:01:27 answer should be b not a and at 1:08:52 answer should be 4 not 3 since ground state for lithium will be considered 2

[@saumypandey2288]

Kuy bhai ground state 2 kasie hoga

[@jeeaspirant700]

@@saumypandey2288 firstly, Bohr model is not valid for lithium atom (Li) as Bohr model is valid for only single electronic species, so it would be valid for Li+2 but not Li atom, hence it was bonus question in 2023. but still solving question , for n=2 explanation watch same question on doubtnut and on many google sites like infinity learning, sarthak, etc ans is given 4 by using formula E =Eh*Z^2n^2 (Eh is given in question) and equating it with E=hc/λ Even i have doubt in this question, if you get correct explanation pls share.

[@aaronstudies]

bhai 1:01:27 mai answer A sahi hai , tune konse daltun ke laws padhliye

[@aaronstudies]

aur bhai 1:08:52 mai answer 3 sahi hai bhai . Ground state saare atoms ka 1 hi hota hai , sirf hydrogen spectrum series mai vary karta hai .Aur ek cheej apne id se jeeaspirant nikal de

[@aaronstudies]

was just jokin in the last line , dont take seriously brother, just work hard

[@RidingWithSoul.]

Who comes after when sir leave physics wallah (pase ka chakkar babu bhaiya )😂

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Ha bhaiiii sab sahi ja rahe ho

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[@abhijeetvenkatgiri9800]

1:07:54 it should 4 all of you correct they gave us the actual energy of lithium atom we can't use 13.56 because it for single electronic species

[@ridhamsharma4938]

Same yss

[@sxurav]

30:22, 32:46, 59:40, 1:05:10, 1:36:45, 1:46:35, 2:00:00, 2:07:15

[@random_shorts.0718]

1:01:10 option b is correct

[@THEeB699]

option b is a given by gaylusac ... i almost forget but then i recalled

[@THEeB699]

after seeing your comments

[@parkhikumari331]

1:1:37 answer is b

[@tantrayarif27]

Those who complete this lecture have lot of patience

[@Princekrchauhan108]

Apne to sir confidence laa diya waah ❤❤❤❤🎉🎉🎉

[@amaanarif755]

1:01:10 is not cleared answer should be D??????

[@jairambhaiya]

30.5 pe answer sayad 222 hoga !

[@2cond]

Shayad nahi 💯% hoga

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Sir your hardword for us is really priceless!!

[@minus8792]

Ho chuka bhai tera iit

[@vidyadharbhatnagar389]

@@minus8792 bhai mains clear ho gya mera issi year

[@DAMNEDITZZSAHIL]

​@@vidyadharbhatnagar389advance bro?

[@Aks0019]

1:41:01 ans is A by using n+l rule As using aufbau principles electrons are arranged accordingly to n+l rule

[@MrArora-gd7zh]

yes you are correct, also we can draw that zigzag diagram for easier calculation

[@avishekzt8603]

32:50 47:36 54:26 59:53 1:02:13 1:09:13 1:28:10 1:31:59 1:45:45 1:55:19 1:59:29 2:01:43 2:03:21 2:06:39 1:24:24 1:58:25 2:11:55

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Aspirants 2025 watching here??

[@sanjayrathore9451]

Among the following which is not a postulate of Dalton's atomic theory [07 January (Morning) 2020] A Matter is formed of indivisible atoms. B When gases combine or reproduced in chemical reaction they do so in a simple ratio by volume provided all gases are at same T&P C D During chemical reactions atoms remains conserved and only pass through rearrangement. Some atoms have same properties including atomic mass. Correct answer is 2....

[@RandhirJedhe]

You are right bro

[@NEET-299]

6:11 Bohr theory photoelectric effect

[@physicswallah7569]

1:04:28 sir ye wale ka to b hoga😊

[@rohandeepsingh213]

Thankyou sir, loved how patiently you explained each question

[@Aimbot999-e4g]

Sir at 1:24:43 we can simply do n^2 which is 5X5 and the answer will be 25😄

[@Agent-ms3uy]

sir at 46:33 you could cancel the kinetic energy and E2 without calculation because K.E=T.E

[@KrishAggarwalA]

you are great bro, what a thinking

[@KaranGuptaA-hx1kx]

kinetic energy of revolving electron is equal to total energy of revolving electron but idhar kinetic energy electron bahar nikalne ke baad ka hai

[@AnkitKumar-wu3zy]

LOVING THE JEE JOURNEY

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Really bro?

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[@krishnadeochoudhary3730]

1:05:05 sir eysma hum 1:05:05 calculate nhi ker skta kyu ke lithium single atom nhi ha

[@subhamraj8389]

1:01:28 ye galat hai sayad kyoki jo second statement hai vo gaylussac law hai dalton nahi hai toh sayad wo ans hoga

[@Soham.69]

Haa exactly Law of gaseous volumes

[@Robin65890]

The correct ans of dalton question is option B not A

[@johaibnk3567]

Best lecture I have ever watched

[@adrijachoudhury4034]

33:05 1:08:26 ANS SHOULD BE 1 1:31:50 1:59:44 2:06:37

[@prateek27743]

1:08:26 mein Answer 4 hoga

[@sandhujatt1256]

@@prateek27743 hnn bhai sir ne ground state of lithium n=1 man liya jbki n=2 hota

[@prateek27743]

@@sandhujatt1256 haan bro wohi 😌

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Will give my 100% , no matter what happens 🫡🫶

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Nikhil saini sir op Arjuna JEE 2025 ❤❤ aapki vjah se sare questions easy solve ho rhe hai thank you sir 😊

[@shalusharma1489]

After aalakh sir he has best teaching skills

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Yoo 2024 attendance here 👇

[@Tanish.vyas23]

❤🗿

[@muaarti2509]

Sir 29:46 par answer 222 hoga kyuki 10^-21 me pucha h

[@nomercy756]

1:36:55 pe hum aufbau principle se electron bharne chahiye

[@AyushKumarSingh-w4k]

29:56 the answer is incorrect as the correct answer will be 222 as it is an integer type question and the answer is asked in 10 to the power -21 form but the answer which we got is 2.22 *10 to the power -19

[@Story_teller12-l6j]

Sir at 30mins the answer will be 222 because they have asked the ans in 10^-21

[@user-tb6rg8vx1v]

1:39:40 : GREAT QUESTION SIRRRR👍👍👍

[@JeeAdvancedRankHolder]

Sir ne to n+l rule koi violate kr diya na..🙄🙄

[@redeemer_14rex26]

The answer will be D right? For the Dalton theory question

[@official-_-_aarif]

Yes! Bro I have same doubt 😅

[@tanvidas7496]

I checked it and the correct answer is b

[@redeemer_14rex26]

Can u pls explain why the answer is b??

[@Lelouch1134]

​@@redeemer_14rex26 bro because its note given by dalton

[@Soham.69]

Correct answer is (B) Because it was given by Gay Lussac under the law of gaseous volumes

[@ankitshorts4360]

Positive ❌ pastive✅

[@monugupta5122]

Ghana hi tu galtiya nikale h ke dusro me

[@sujalbaheti]

At 1:07:00 the answer is ×~1.005 taking nearest interger we get ×=1 So the answer is 1 and not 3

[@S_saini_903]

Question at 1:01:23 answer was 2 option not 1

[@prateekparashar21]

What a great teacher ,give great explanation to every question 👏🏿🫡

[@ninjagaming00007]

In velocity it is 10^8

[@yawarabass3328]

Got confidence.... Jee 2025❤❤❤❤❤

[@Deveshmishra-ek1ti]

1:08:54 sir may be I am wrong but it's answer should be 9 times..?

[@SHAURYA_CDT]

Is video me 2x bhi kam lag rha h...

[@Abhishek_a07]

Bhai main 4x pe dekh raha hun 😂

[@ManasJaipuria]

@@Abhishek_a07 kaise bhai

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[@melodiousbeats8339]

Anyone confirm question at 1:01:27 option D should be correct

[@shubhamgarg3177]

Yes option D is correct

[@omvispute6185]

no bro . option B is correct answer, 2nd is wrong statement because its a statement of gay lussac law

[@aizansiddique6083]

1:08:01 sir the answer will be 1 u forgot to divide it by 3 also.

[@PiyushMahajan-r3j]

I found the best session ever 😊

[@Osumcreeper]

JEE 2026 attendance here

[@RuchikaJangir-wi5zu]

💀

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[@Mahatmagandu09]

Haa bhai 😅

[@iitDelhwithyou]

Arjuna 2.0 11 class wale like karoq

[@krishcorner7286]

At 30:00 mins answer should be 222 as there in question it is mentioned 10 raised to the power -21

[@RajuKhan-ih7ep]

At 1:04:18 the is sir right there?? Coz 1/4 -1/9 = 36/5.. please can u explain

[@imnikhi1]

1:08:20 ans should be 1

[@sandhujatt1256]

No 4

[@rajkshitij1]

Sir Atoms ke baare mein hmne Physics mein bahut kuch padh liya hai to kya hame iss chapter mein vo sab phir se padhna padega ya hm sidhe quantum nos. padhe?

[@ramos7122]

God of chemistry 🛐🛐

[@hatakeobito1481]

30:06 pe answer 222 hoga kyuki sir ne use 10 ki power -21 mein convert nhi kiya

[@m2bstech278]

Yes,you are right

[@maleehalone9870]

30:04 answer is 222 and not 2.22 bcz it`s in terms of 10^-21

[@ashraybagde]

1:08:47 answer is x = 1

[@ShriyaGabhane]

Thank you sir for clearing question solving promble

[@kabirkumar7288]

The questions are really hard for 11th students

[@abhay__3051]

Yh 28 july vala mere shift m tha 2022 m mughe hwa tk nhi lgi thi language ki adv level h

[@straww_8]

1:07:40 par sir apne calculation mei ek three chir Diya Jo rhs mei hai but we understood the concept:)

[@manansinghal2586]

Sir dalton postulate waale me 2nd is incorrect

[@AbhishekKumar-kx4zd]

1:17:00 me hydrogen ke pass ek hi electron hota ha tho 3rd no. formula use hoga na

[@adrijachoudhury4034]

same doubt

[@sumanasarkar3676]

1:07:57 ans is 1×10^-8

[@JasbirSingh-gx8dl]

1:08 but Li atom is not a hydrogen like species. how can we use bohr theory?

[@studymotivationyt8012]

Sahi hai bhai iska answer NONE aayega

[@harshsrivastava2136]

1:08:46 Answer should be 4

[@THEeB699]

sii hi sir ka bhi ap kuch err kiye honge calculn,, me

[@vaishalisunepwar1908]

Sir... 1.01.29 Dalton wala question samaj nahi aaya hai..

[@premlata8974]

1:07:44 sir u forgot to divide it by 3 the ans would be 1

[@arman_ahmad_official8923]

1:01:20 is question me option B correct hoga

[@Harshkhandelwal2020]

Hm

[@ARStudy]

1:01:20 sir answer 2 hoga

[@Shailendra_10000]

" Hathiyar nikalo" this line is epic 😅😅😅😅 sir aisa na boliye nahi padai chhod kr aur kuch krne lagenge students 😅😅😅

[@divyayadav6748]

Experienced people

[@sameerpatelab9096]

U mean muth marenge😢

[@dhruvprajapati5206]

49:01 this concept emerged from mvr = nh/2pi {angular momentum} and also a knot is radius of 1st orbit

[@aizansiddique6083]

thankyou ❤