JEE Main 2024 PYQs - Modern Physics & Semiconductors | Jan Attempt | Eduniti | Mohit Sir

[@mohitgoenka99]

In Q2 09:27 of semiconductor it should be temp is increased at 2 C/s and not cooled at 2 C/s (a language error at NTA's end) We missed mentioning it while solving 👉 Question PDF of above session in printable format - telegram.me/edunitimg/2667 👉 Jan Attempt JEE Main 2024 Solutions Playlist - kzbin.info/aero/PLjvx7xqdpePJoAzJbQbGy2VPOHOCA8-z6 👉 Join Telegram for updates: telegram.me/edunitimg

[@Jee2024-o8m]

Ok noted ❤

[@Yashgupta-xf3tp]

Thanku sir... For providing this facility 😊

[@AshwanpawarGoram]

Koi baat nhi sir

[@IITekSapna]

mai sbse phle yhi notice kiya kuch error h

[@Devendra-hm5ky]

1:28:45 revise

[@jagratisharma7060]

1:37:44- 1KWH- 3,6 *10^6 1:36:04 - BROTHER YOU BETTER REM THAT STOPPING POTE IS EV..... 59:41 - FIR SE 12:37 - how to calulcalte change in temp and aplha in semi 14:47 - new thing 26:47- raat le beta 30:11 39:30- raat 43:28- fir se 45:16 - formula 48:51 - formula 51:06 - use brain 52:49 58:03- ev convers.... 1:05:10 - KE OF photon 1:10:16 1:14:39- power question 1:18:10 1:20:44- imp 1:22:18 - alwaysssss sameeeeeeeeeeeeeee 1:25:15 - graph questionnnnnnnnnnnnnnnnnnn 1:29:49 - IMPPPPPPPPPPPPPPPPP 1:32:41- TRUST YOUR GUTS

[@aakash4510]

Modern physics 33:20 38:37 ( inverse square law only grav and elrostatic, nuclear forces are not central force unlike grav , electro and also they are charge dependent) 1:02:58 1:08:54(dont take rydbirg value in numerical ) 1:15:39 1:16:47 1:25:00 1:29:38 1:32:02 1:39:29

[@Shiva63022]

Those who are new to this channel mark my words he is going to become your favorite physics sir soon... ✅✅

[@mohitgoenka99]

lovely words dear

[@ShivamKashyap-i3j]

Absolutely true bro❤

[@rahuljoshi1426]

😏😑

[@Dev-qy9ve]

true

[@sarthakvashisth6124]

same happened with me from january i am just stick to eduniti channel only physcs == eduniti❤

[@Mynotes-mr7uw]

35:00 41:00 43:50 do it again 54:35 wapas kro 56:00 931.5*∆m MeV (matlab agr ∆m ko 931.5 se multiply kro to energy MeV me hi aayegi) 57:05 Don't forget to convert ev to joules. 59:00 agar complete absorb hua to p=I/c aur complete reflect hua to p=2I/c 1:05:00 do it again 1:20:00 1:28:30 energy thats lost is given to the daughter nuclei 1:30:45 1:32:15 dhyan se suno.....radiation force aur momentum

[@aarushibashisth0507]

54:35 wapas kro 56:00 931.5*∆m MeV (matlab agr ∆m ko 931.5 se multiply kro to energy MeV me hi aayegi) 57:05 Don't forget to convert ev to joules. 59:00 agar complete absorb hua to p=I/c aur complete reflect hua to p=2I/c 1:05:00 do it again

[@Fampay-q3h]

35:00 ,38:32 opt binverse law , non central 53:00 2b 55:00 59:00 radiation pressure , 1:09:00 , 1:27:30 1:30:45 1:32:39

[@mohitgoenka99]

well done on completing it keep learning and solving

[@ShubhacharanSanatani]

35:40 2.assume that hydrogen in ground state excited to nth state and then it should deexcite to balmer 39:00 4. theory 49:42 8.conceptual,revisit and revise,typical language 54:35 10.while finding binding energy or energy released always write the eqn in which reactants mass greater than product mass then solve it 1:02:30 14.great manipulation, practice again 1:16:49 19.typical language, remember Energy E=eV 1:26:24 24.released energy,Q=kinetic energy of daughter nuclei(number of daughter nuclei)

[@mohitgoenka99]

very good dear keep learning and solving

[@Rex8661]

33:10 45:46 1:03:13 LLNB NUCL FORCE NO INV SQ LAW

[@mohitgoenka99]

well done on completing it keep learning and solving

[@sumitsinghyadav285]

36:05 conceptual 47:40 manipulation 1:4:00 tricky Q 22- no of allowd transtition and no of spectral lines are equal 1:28:00 must look towards it

[@mohitgoenka99]

well done for completing it keep learning and solving

[@atomsandhormones]

4:37, 25:04, 27:33 (demorgan), 30:11 (alternate method), 39:06, 50:54 (assumed), 52:02 (product - reactant), 1:04:12, 1:06:00, (alternate), 1:10:43 (alternate), 1:18:49 (1 to 3 not from 2)

[@Krishnaa__767]

@modern 34:51 confusion in language 38:56 conceptual 49:48 dekh lena ek bar 52:28 try again...jrur 54:23 try again... 58:46 medium ka dhyan rkhna 1:05:29 repeat for sure 1:06:55 Repeat jrurr... 1:09:28 remember concept 1:17:02 dekhna jrur 1:23:36 keep this formula in mind 1:26:30 nice qn repeat it

[@mohitgoenka99]

Well done on completing it Keep learning and solving

[@shreyakumari30]

36:55 R=rnotA^1/3, 50:55 😮, 53:58 middle mass h=6.63×10^-34 59:19 radian presuure =I/c complete reflect 2I/c 1:01:08 Longest wavelength least energy n and n+1, 1:04:12 Kenwegy of electron bs ek hi way h =1/2 mv^2

[@mohitgoenka99]

well done on completing it keep learning and solving

[@kalpchopra5139]

// 38:34 - Theoretical Question 49:46 - Mixed Question (Optics + Photoelectric) 58:23 - Scope of silly error 1:03:16 - redo, don't overcomplicate

[@mohitgoenka99]

wish you all the success dear keep learning and solving

[@anhad2093]

Semiconductor No doubt Modern Physics 39:01 scam h bar hona chahiye 1:05:05 good question 1:12:38 revise 1:17:03 1:29:05 blunder 1:30:54 revise 1:39:05 Kwh

[@bhaumikreelworld]

42:41 - number of photns emitted corresponding to the power emitted 51:22 - easy question but look at it again 58:17 - new concept , radiation pressure = intesity x refrac. index / c 1:02:46 - easy question but needs some manipulation 1:08:53 - decent question 1:42:48 - listen carefully

[@mohitgoenka99]

very good dear keep learning and solving

[@hridayaprakash4252]

For the new ones here... This is "THE BEST " place for quick revision and question solving😊 No unnecessary talks and comments..

[@mohitgoenka99]

Thanks a lot 😊

[@yashyadav602]

At 1:10:53 Even if we directly calculate the wavelength of photon using rydberg equation, the answer is coming out to be 17 ....

[@AnuskaBanerjee-m2d]

SELF REVISION (SEMICONDUCTORS) : 1. 2:20 easy 2. 8:50 interesting 3. 13:22 tricky 4. 16:42 easy 5. 17:48 easy 6. 19:16 easy 7. 21:17 easy 8. 22:37 easy 9. 24:47 revise 10. 27:15 easy 11. 28:14 interesting

[@mohitgoenka99]

well done on completing it keep learning and solving

[@Diksha-_7000]

Rev points 24 jn atm 🌊 baki sb crt he sir ✅ 38:18 R=R°A^1/3 R prop A 1/3 40:44nu nt ctrl 41:09 45:10 no. Of ph Plm /hc 50:11 rays ☀️ Q cnpt suna 51:49 middls ms nuc means 2 prod me 57:08 931.5 *mev 57:27 59:28 radiation pr= I/c medim he toh c/meu 1:03:41 🚫redo 25%of c.1:04:16 ph E= hc/ lm 1:06:32 🚫 rechk 1:13:26 Recoil Q redo🚫 1:15:30 n ph = lmp/hc. Prp lmb 1:19:56 intg dalte wqt rechk 1:22:52 rem, ❗ K= l T l = U/2 1:23:44 ok mai transition dekh kr confuse hui, spectral sme hi he, baki sahi tha 👍 1:23:44 👍 1:23:44 particular sitn jha ∆M replace 3m 1:23:44 magnetic moment=I*A‼️n ki power 1:31:30 P delivered = E/c in t 1:31:52 ÷ 3.6*10^6 in kwh 1:31:59 dekhio cnpt 👍 1:31:59 A = R^3 1:43:49

[@mohitgoenka99]

very good dear keep learning and solving

[@ArcIITBHU]

1:19:58 .... tough sawal do again 1:05:16 .....photon mein hamesha hc/lambda use karo 40:35 .....new concept

[@mohitgoenka99]

good

[@a.l.o.k.s.o.n.k.a.r]

Modern Physics Tricky 36:09 1:19:49 1:41:23 Learn 1:30:58 Conceptual 42:20 1:05:33 1:08:35 Do it Again 1:00:03

[@mohitgoenka99]

well done on completing it keep learning and solving

[@SujitaJaiswal-wd7dz]

8:59 good one( no deflection in galvanometer 🎉you should apply balanced wheat stone bridge 25:19 VGe is .3

[@SujitaJaiswal-wd7dz]

39:31

[@SujitaJaiswal-wd7dz]

49:46

[@SujitaJaiswal-wd7dz]

51:38

[@SujitaJaiswal-wd7dz]

54:11

[@ayushsoni7852]

Sir In Q-1 why have to taken case of zero A because Power is also given for zener voltage..so if the zener current will be zero,then power will also become zero?

[@KSH132]

Same doubt

[@FrPunit]

to match nta`s dumb answer , we waste so much time in exam because of wrong options and questions

[@sakshamgupta775]

Haa same dought

[@abhishekanchal2314]

BRO SIR WAS TRYING TO FIND RANGE OF RESISTANCE HE JUST ASSUMED THAT CURRENT IN ZENER IS APPROXIMATELY 0 IN ORDER TO GET MAZIMUN VALUE OF Rs. ALTOUGH IT WAS JUST FOR SAKE OF EXPLANATION I GUESS.

[@RimaSingh-l7y]

00:09 Semiconductors and Modern Physics topics discussed for JEE Main 2024. 02:24 Discussing errors in the final answer key 06:54 Discussing resistance value ranges in semiconductors 09:26 Experiment on semiconductor resistance change 15:04 Explanation of electron behavior in volts 17:27 Explaining logic gates and Boolean algebra in JEE Main 2024 PYQs 21:55 Discussion on the breakdown voltage and current of a zener diode. 24:08 Understanding potential differences in circuits is crucial for solving problems accurately. 28:37 Understanding the properties of semiconductors 31:02 Discussing modern physics questions in JEE Main 2024 36:05 Derivation of nuclear radius formula and its application 38:34 Summary of discussion on nuclear force and its characteristics 43:02 Understanding energy calculation and photon characteristics 45:25 Calculation of frequency of radiation emitted during transition in Hydrogen ion 50:17 Explanation of photoelectric effect and nuclear fusion process 52:28 Calculation of binding energy related to nuclear reactions 57:02 Explanation of threshold frequency and work function in modern physics 59:29 Discussion on the Paschen series and energy differences in orbits 1:04:56 Solving nuclear physics related questions involving energy release and mass calculations. 1:07:06 Discussing mass defect and energy release in nuclear reactions 1:11:37 Understanding energy calculations in semiconductor physics 1:14:07 Understanding photon emission in semiconductors through simple questions. 1:19:04 Energy difference of 12.09 electron volts in semiconductor physics. 1:21:26 Discussion on hydrogen atom and energy transitions 1:26:52 The concept of mass defect and kinetic energy of daughter nuclei 1:29:21 Explanation of magnetic moment in Modern Physics 1:34:14 Solving threshold wavelength equation for photoelectric effect 1:36:41 Explanation of mass defect and energy conversion in a reaction 1:41:39 Discussion on mass number and nucleus radius 1:43:50 Discussion on time management during exam thank sir

[@mohitgoenka99]

very good dear keep learning and solving

[@prakharsrivastava2267]

4:38 9:45 / XOR GATE 17:48 19:31 20:20 standard 21:22 23:13 25:24 ye rat lo 27:40 / 28:17 34:43 / 36:50 39:52 42:59 formula 46:24 imp rel 51:09 ajeebo gareeb 52:49 standard 56:17 / 59:31miu ka khel 1:03:13 1:07:03 actually good one 1:09:34 revision video yaad aagya 1:16:10 plum pudding 1:19:08 piche wale q ka application 1:23:181:25:32 1:27:23 1:30:33 1:32:18 1:35:56 1:40:44

[@Aspirant2024IITJEE]

thik hai, karliya seekh liya ho gya, best of luck everybodi 🍀🍀

[@premprajapati-kf4nc]

Some better and tricky Questions Modern physics :- 34:37 39:05 50:08 51:16 ,,,54:20 Nuclear Physics 58:58 Radiation pressure

[@mohitgoenka99]

well done dear

[@riyasah3091]

Revision (semiconductor) 3:13 8:47 24:32 to end ~ in mock

[@palakgupta2217]

revision 1:08:37 (easier method) 1:16:53 1:26:27 1:30:55 1:38:23 (unit change)

[@mohitgoenka99]

very good dear keep learning and solving

[@Sanatani-c1t]

QUESTIONS TO REVISE 34:27 n=2 se n=1 me aa raha hai toh lyman me radiation emit karega aur agar n= 3 to n=2 me aa raha hai balmer me emit karega NUCLEAR FORCE ARE NOT CENTRAL FORCE AND NUCLEAR FORCE ARE CHARGE INDEPENDENT 49:58 SAME I CURRENT IS DEVELOPED ON FOCUS BINDING ENERGY = BINDING ENERGY OF PRODUCT - BINDING ENERGY OF REACTANT 1:04:03 1:08:57 1:17:22 1:23:33 1:24:57 silly mistake kardi 1:24:57 badiya sawal

[@AanUniqueintrest-ic1gf]

Thank you sir , Sir aapki vajah se mai physics ke pyqs khud se solve kar pa rahi hu Thank you sir

[@mohitgoenka99]

well done dear keep learning and solving

[@ItsAbhii7]

41:11 Because if R increases stability decreases 1:27:22 energy released = KE of daughter nuclei 1:37:34 kWh conversion

[@TheItachiUchiha_07]

*Timestamps* Modern physics Note: woh nucleus part skip hai abhi revision ke time manage krna Q8 49:50 Q14 1:02:24 question nhi pdha tha theek se I thought proton and electron Q16 1:12:30 Q19 1:16:58 Q25 1:29:45 Jan attempt done ✅ Letsgooo april

[@mohitgoenka99]

well done on completing it keep learning and solving

[@_Mr.invisible_]

Thankyou sir❤

[@Notsomortal]

Thx brother for helping sir

[@mohitgoenka99]

most welcome dear

[@Brainsaint]

Done sir Aise hi kripa drishti banaye rakhiye🙏🙏😅

[@MMdeku]

4:42 zener q 9:23 imp q good 25:02 diode values 34:00 goooooodddddd QA read properly 39:21 theory q hard 43:27 do imp 50:03 whattt 51:45 balance properly - for BE q reactions balance mass number by multiplying constants 57:25 58:32 formula 1:03:49 imp good 1:06:01 imp 1:11:06 just see 1:16:54 hard q 1:22:05 😅 1:27:30 imp q 1:29:50 q 1:41:02 just look

[@mohitgoenka99]

well done dear

[@Osiris-10]

n physics Q2 language Q4 Nuclear forces are spin dependent - stability of nucleus is inversely proportional to fraction packing Q5 redo Q9 redo Q12 Rad pressure = intensity/speed of light Q14 redo Q15 redo Q16 17 17 19 redo Q21 K = T = U/2 Q24 mass defect question Q25 magnetic moment is directly proportional to n Q28 silly mistake Q29 1KWh = 3.6 x 10^6 Joules Q30 redo done revised 11:52 PM 15;3;24

[@mohitgoenka99]

#learnlikeneverbefore

[@aditieee8262]

Semiconductor - 6:00 9:00 18:00 20:00 21:40 23:00 25:00 28:00 - zener diode - logic gate

[@Sassy_657]

Revise modern physics 33:53 51:37 nuclear physics 55:38 nuclear physics 1:05:42 nuclear physics 1:08:40 recoil wala question 1:16:50 1:25:06 1:30:19

[@Beliver_of_unseen]

A good suggestion why don't you make separate notebook for doubts and write it there

[@aspirantt04]

44:00 direct formula p=nhc /lemda in my notes❤❤ 1:05:00 imp

[@sazidhussain3971]

For revision 34:00 38:40 theory 50:39 1:08:39 tang kiya tha 1:26:25 1:30:23 1:31:26 (just remember p=i/c then solve it to get momentum) 1:39:17

[@vansh47-h8g]

33:30❤51:28❤58:18 P =I/C (when completely absorb)

[@NN123-q3x]

Bro 2I/c when completely reflecting hota hai . partially me derivation through Jana padega

[@thesatyamtiwari28]

Sir in 4th question of modern physics Angular momentum should be integral multiple of h/2π Why we are considering it as multiple of h

[@snehadas672]

See thr video once again!! Sir has explained why it is so

[@SHIVANISHUKLA-kg1jf]

Bcz bro 2pie constant hota hain toh h se bhi kar sakte

[@aayushpaswan2941]

@@SHIVANISHUKLA-kg1jf kuch v😂😂

[@ShubhSahu22]

​@@SHIVANISHUKLA-kg1jf agar constant hata denge to integral multiple nahi ayegaa comstant ki value bhi ayegi jo ki khud integral nahi he or har value of n=1, 2,3 ke sath satify nahi karegaa

[@Skmjee2024-2IIITH]

revision 3) band energy meanns ionisation energy 11) unique qs, (a+b) + (a + b ) == (a+a ) +(b+b) so that its easy to simplfy

[@Krishnaa__767]

1:31:12 don't forget is trh ke qn 1:32:32 total momentum delivered per unit time is force 1:36:43 typical variety...try again 1:41:11 tricked...🙂

[@mohitgoenka99]

Well done on completing it Keep learning and solving

[@rishikumar-uf7tu]

25:20 36:21 43:00 49:41 good question 1:03:00 good manipulation 1:08:51 1:16:48 1:23:43 eergy of all levels in hydrogen spectrum

[@mohitgoenka99]

good

[@SAHITYA.]

MODERN PHYSICS QUESN 2 34:30 QUESN 8 49:50 TO DO LATER 51:20 54:10 1:5:40 1:26:26 QUESN 12 59:00 LEARNING TO HAI QUESN 14 1:0 4:50 1:16:50 1:30:00 1:33:12

[@nipungrover1788]

sir 9 th ko paper hai and this the last video i am watching and ab formula revision karunga

[@a.l.o.k.s.o.n.k.a.r]

Semiconductor Do it Again 22:33 2:47 Tricky 8:52 Thank you sir ji

[@mohitgoenka99]

very good dear keep learning and solving

[@bitsofpaper6100]

Self reference 2:53 12:58 33:10 39:08 theory 58:36 1:05:30 1:30:55 1KWh = 3.6 x 10^6 J

[@spreadingknowledge246]

Thank you sir for your wonderful explanation no other channel can explain in such precise way i am very grateful to find this channel i will score the 90 marks in jee physics

[@mohitgoenka99]

very good dear keep learning and solving

[@satendrakumar7281]

1:20:27 sir 2 doubts are there 1: balmer series he to 2 se 3 hona chahiye na aap ne 1 se 3 kiya he 2: at 0 Kelvin there must be no movement of electrons how this even possible either there is some typing mistake it must be 0° celcius

[@keshavgarg6192]

1. In that question, electron is assumed in ground state and for minimum energy so that it can be observed in balmer series is to send it from ground state(n=1) to (n=3). So that there is case that it will come back in balmer series after de-excitation. Hope, it's clear now.

[@lazzysloth]

7:40 11:33 25:33 38:15 41:15 50:27 59:02 1:02:00 1:08:00 1:13:00 1:16:00 1:17:00 1:30:00 1:31:00 1:41:00

[@mohitgoenka99]

well done on completing it keep learning and solving

[@madhursharma3355]

Is baar modern physics ke questions kafi tricky aaye hai😅

[@avinashkashyapjha2247]

Revision Problems: 📒✅ (2024) *Modern Physics* 💡 33:10 asked non - conventionally 36:10 atomic radius review Q4, Q5 - one theoretical (h/2π hota but anyway...), one cbse chemistry NCERT direct example 45:28 electronic transition 49:45 asked in my shift - left confusing for optics 🙂 51:28 (my shift - correct 💯🔥) binding energy numerical 54:12 mass defect 58:52 1:02:52 - *good* (rad. pressure with small optics tadka, recoil speed) *BEST* 1:08:40 🎉 1:17:05 - missed by 0.9!! (my answer - 120) 😮 1:26:30 nuclear fission 1:29:30 Finally JEE ne puch hi liya magnetic moment par sawal ! 1:31:57 photoelectric effect (rad force) ⭐ 1:35:00 most standard numerical (by mistake eliminated lambda) 1:39:40 easy conceptual question on photoelectric 1:41:34 atomic radii par sawal phir se 1:42:40 common sense with atomic radius concept (volume likh diya bss). Thank you sir 🙏🌱

[@mohitgoenka99]

well done dear

[@Yuvika._]

1:19:39 1:30:57 1:32:55 / 1 kwh = 3.6 * 10^6

[@Studytime-t5l]

Questions to revise Q8 50:42 Q14 1:03:29 Q16 1:10:51 Q26 1:31:43

[@mohitgoenka99]

very good dear keep learning and solving

[@padhaku.neeraj]

2 9:15 batman 6 19:32 my weak 3 14:13 easy but i miised 9 26:46 i missed MODERN PHYSICS 1 32:57 SEE ANSWER

[@ankitmaurya3024]

🛑Revise again 1️⃣ semiconductor Ques1 2:00 Ques2 8:50 Ques9 25:00 2️⃣Modern physics Ques2 33:00 Ques8 50:00 Ques14 1:03:00 Ques16 1:08:00 Ques19 1:17:00 Ques24 1:26:20 Ques25 1:29:20

[@HimanshuUpadhyay-h8t]

1:24:14 No. Of lines =n(n-1)/2

[@Mikasa3eren]

8:44 33:52 57:49 learn value 1:03:36 1:27:34

[@priyankadubey205]

Thank you so much sir❤ Feeling confident now.. 😌

[@salonikumari6759]

Modern Physics 2- I did it but still review the explanation 4- Revise 8- Important for me 10- Do it again 12- In medium, speed of light is c/u 14- Confused about wavelength of photon, K.E of electron is 1/2 mv^2 only and K.E of photon is same as Energy of photon 19- Somewhat Tricky 24- Q=B.E= K.E of daughter nuclei Do it again 25- Very Very important 26- Momentum transferred in time t= Radiation Force= E/c 28- Important, Do it again 29- 1kWh = 3.6×10^6 joule 30- Have a look

[@IIT2024UNDER5K]

35:01 ❤ language❤ 53:25 hmesha se dikkt,❤ 56:52 ❤01:09:00gajab❤ 1:18:22 ktq❤ 1:18:30

[@ACHShorts1625]

Anytime the best revision i have ever seen in these 2 years. Thank you Sir!

[@mohitgoenka99]

Most welcome!

[@vastav2194]

1(concept of range ), 2(take delta T directly), 3, 7 , 9, 11

[@akshitasaini7671]

12:49 ❤ 30:34 ❤ 40:51 ❤ 1:02:43 ❤ 1:13:18 ❤ 1:20:16 ❤ For my own revision purpose❤

[@King.Arpit7]

hi

[@ankurtiwari5570]

Thank you sir for THis session....everything was good bs thoda formula pr grip bnana hai and Nuclei Chapter ko ache se krna hoga...Loved your explaination💕💕

[@UnstoppableYou.35]

semiconductor 9:13 30:00

[@NiteshChoudhary1-vl4qu]

Modern physics 22 October 33:06 36:00 50:00 51:42 54:30 58:20 1:02:19 1:08:40 1:22:00 1:25:30 1:30:10 1:31:50 1:38:00 1:39:41 Today's task completed Best of Luck my 2025

[@nsnim9075]

Sir ,You are my favorite physics teacher ever just bcoz of uh i feel some easiness in physics 😊 thnq sir

[@spideymemes]

39:00 sir ye SL arora mei diya hua hai line by line exact yahi

[@aviralmishra8405]

thanks sir we are solving and incresing our confidence

[@ekta7968]

Done sir Thankyou so much sir for this amazing session ❤❤❤😊 SEMICONDUCTORS 8:56 - 🌟 25:36 MODERN PHYSICS 42:57 49:49 - 🌟 51:33 - standard question 59:25 - 🌟 1:12:12 - 🌟🌟 1:16:27 1:24:09 1:29:56

[@mohitgoenka99]

well done dear

[@ekta7968]

Thankyou so much sir 😊🙏🙏❤❤

[@she_.herrrr]

Sir you explain with such a clarity that it directly sticks to the mind!🌻

[@nitinmallela1706]

Sir 41/43 qns correct in this session Amazing session sir❤❤❤❤❤

[@vansh47-h8g]

Percentile

[@thippanisathyam903]

Thank you sir for this question solving sessions. I got 97 percentile. By this sessions now able to solve very fast than before

[@Patel_Jashmin]

1:24:12 Sir here, that formula is derived by assuming there are large number of electrons in our system of hydrogenic atoms...if we see n(n-1)/2 is number of different kind of wavelength produced. If n = 4 we get ans as 6. Number of different kind of wavelengths = number of distinct transition.. By common sense and if we dont use the formula, in system of large number of hydrogenic atoms, there are multiple electrons. Thus one electron which was present in 4th orbit can travel as: 4-->3-->2-->1. This gives three different wavelengths.. similarly some other electron in other atom may travel as 4-->2-->1 . This gives one different wavelength as wavelength from 2 to 1 is already counted by previous electron. One more electron may travel as 4-->3-->1 which again gives only one distinct wavelength 3-->1. Again one more electron in other atom may travel directly from 4 to 1 which is distinct. This whatever number of distinct wavelengths we got corresponds to number of transitions.. Now in this question, they have given one electron one atom. Okay by formula we get 6 but its single atom and thus if we dont use formula and try to use earlier method: since they asked max number of transition.. hence for max transition I ll make electron go from 4-->3-->2-->1. Now this is single electron obviously once it travelled by this path it cannot travel from other paths mentioned above because it was already dexcited!.. Contradiction🙂🙂 Please ans my doubt sir..I hope you understood my doubt I tried my best to explain in this virtual mode🙂

[@SUBHASHSUBAHSH]

BHAI TO PAGAL HA ? ITNAKON LIKTA HA

[@abhishekanchal2314]

BRO WE ARE COUNTING TOTAL POSIBLE WAYS IN WHICH ELECTRON IS DE EXITING FROM HIGHER ENERGY LEVEL TO LOWER ONE SIMPLIY JUST LIKE PNC AS WE COUNT LIKE CHOOSE 2 DIFFERENT BOYS FROM GROUO OF 4 BOYS SO TOTAL COMBINATIONS WILL BE 4^C2 JUST LIKE NO OF WAYS IN WHICH ELECTRON CAN EXITE FROM 4TH ORBIT WILL BE 4C2 THAT IS NOTHING BUT n(n-1)/2 ITS NOT ABOUT HOW ONE ELECTRON CAN TRAVEL FROM ONE PATH SO IT CANT TRAVEL FROM ANOTHER ITS ABOUT BY HOW MAYY DIFFERENT WAYS ELECTRON CAN EXITE FROM 4 TO 1 ITS LIKE 4 se 1 par ane mai kitne rasto se aa sakta hai ya to 4-3 , 4-2 , 4-1,3-2,3-1,2-1 THESE WILL BE POSIBLE WAYS. I HOPE ITS CLEAR NOW I TRIED MY BEST WAY TO EXPLAIN IN THIS VIRTUAL MODE 🙂

[@noobme2100]

Revision; 5:00 33:20 38:37 54:05 1:10:30 1:16:40 1:26:00 1:30:00

[@prod.shanmuga5379]

Semiconductor = 1,2,9,11 Mordern Physics = 2,5,8,12,14,16,19,23,25,28,*30*

[@Tribhuvansinghshekhawat1770]

I have lost all the hope now I am ending my journey here Hope everyone else will get what they wanted 😞

[@kaiokee]

godspeed bhai, bas tikke raho. tere jese aur lakho log hoge, ye bas ek phase hai life ka. ya toh ham haarenge ya ham jeetenge. aur koi bhi race mai sabhi logo ko 1st nahi milta

[@ggman4544]

all the best for your future

[@Tribhuvansinghshekhawat1770]

@smashhhh7664 ha bhaii 😞

[@Tribhuvansinghshekhawat1770]

@@kaiokee dhanyawad bhaii abhi or ghisna h khud ko zindagi me achi jagah pahunchne k liye

[@rhythmmahajan4795]

Paper kab hai

[@tarunendrasingh7040]

Sir but angular momentum to directly proportional to h/2pie hota hai ??? 41:00

[@forytpro5348]

Us 😢

[@waniafarooq5132]

Wow sir... You solve every question so smoothly 👍👍

[@arnavtyagi9026]

revise 19:15 , 3:20 , 22:35

[@mohitgoenka99]

well done on completing it keep learning and solving

[@poorvishah8590]

The best teacher for physics on youtube for sure! ❤

[@abhi_piitian5646]

After rajwant sir , from my openion....

[@veNom_thespirit_summoner....]

@@abhi_piitian5646 Rajwant sir for full chapter concept and mohit sir for revision and practice the deadly combo....💀💀

[@abhi_piitian5646]

I agree with you bro @@veNom_thespirit_summoner....

[@kvthirumaleshwarabhat9146]

Thank you Sir😊 Modern physics and semiconductors done😊

[@mohitgoenka99]

Great 👍

[@poorvasharmaxa5547]

Semi - 1,2,5,6,11 Modern - 2,4,8,9,10,12,13,14,15,16,19,23,25

[@dhruvmathur2420]

Kinetic energy of photon = energy of photon kyo kiya (hc/lambda ph) 1:05:25

[@Aditya_Singh_Rana]

April attempt ke kab daloge sir ??

[@Shitalshaw2620]

_Morden Physics + Semiconductor Jan 2024 complete PYQ's done sir...❤❤_ *_In a very effective way of solving...🤘🏻_*

[@Justfocus999]

jee mains 24 ma kitna aya Tera? Chemistry kha se Karti ho....?

[@Shitalshaw2620]

@@Justfocus999 27th Jan shift-1:- 115 pe 80%tile It will improve in 2nd attempt.

[@Justfocus999]

@@Shitalshaw2620 wish you best if you are not my shift 😇 2 question ka answer?

[@Xin12429]

😂😂​@@Justfocus999

[@probablyantisocial]

modern physics Q2 language Q4 Nuclear forces are spin dependent - stability of nucleus is inversely proportional to fraction packing Q5 redo Q9 redo Q12 Rad pressure = intensity/speed of light Q14 redo Q15 redo Q16 17 17 19 redo Q21 K = T = U/2 Q24 mass defect question Q25 magnetic moment is directly proportional to n Q28 silly mistake Q29 1KWh = 3.6 x 10^6 Joules Q30 redo done revised 11:52 PM 15;3;24

[@livekxneki]

49:45 , 33:09 (silly mistake) , 51:21 (silly mistake) , 1:02:22 (photon ki kinetic energy likhni hah) , 1:08:41 , 1:17:06 (ground state ki energy kon likhega be) , 1:26:24 (concept bhul gya bas formula yaad tha) , 1:39:56 ( tricky question tha )

[@mohitgoenka99]

good

[@Hutao0099]

Day 64 Semiconductors Not done - Q2 (language) Rest done

[@mohitgoenka99]

very good dear keep learning and solving

[@paawansharma5972]

sir ashirwad dijiye 8 apr ko paper hai. mai sare pyqs solve krke ja rha hu aur thanks a lot mohit sir for your efforts

[@vivo2023-l5p]

I don't usually like and comment, the value this series adds to my prep has forced me to👍

[@mohitgoenka99]

great

[@amritanshuraj5590]

Modern 4 theory 14 baar baar nhi bnta ye concept wala achhe se kro 16 naya 24 25 good concept 26 32

[@mohitgoenka99]

very good dear keep learning and solving

[@celestialnymphx]

39:02 imp theory 51:09 1:03:11

[@mohitgoenka99]

very good dear keep learning and solving

[@SHIVPRATAPRAGHUWANSHI.]

Sir dusri jgh ye op woh op chl rha tha isliye yha pdne aaya hun #neet2k24 ❤

[@somya4815]

tried the 1st question (in my shift 1-1 ) during the exam 5 times and ended up leaving it

[@An_anshika710]

Same 😢😢😢😢😢😢

[@YZ_Editz844]

Same

[@Rajkumari-u8u]

Thanku so much sir🥹 physics me dheere dheere confidence aane lga hai ab....pehle questions nhi bnte the🤧...but jb se apse pdhna start kiya h..... I'm able to solve mostly questions 🥹🙏🏻

[@mohitgoenka99]

very good dear

[@Rajkumari-u8u]

@@mohitgoenka99 thankuu sir🥹