JEE Main 2023 PYQs - Wave Optics & EM Waves | Jan Attempt | Eduniti | Mohit Sir

[@mohitgoenka99]

👉 Download Wave Optics & EM Waves PDF - bit.ly/3ZpjD6z 👉 Join Telegram for updates: telegram.me/edunitimg 👉 Jan Attempt JEE Main 2023 Solutions Playlist - bit.ly/3xlLCIp

[@nikhilr.fagedia4678]

Now this is called content.... Thanks sir, I will try to score more than 60 marks in physics in April attempt

[@mohitgoenka99]

All the best

[@user-sf7sg7jh8u]

Try more than 80 U hv time

[@technicalabhiyt2847]

@@user-sf7sg7jh8ubhai abhi bhi aa sakte hai 80 ya nahi...?

[@MetaDude]

​@@technicalabhiyt2847 yes, sir ki planner use kro aur invisible mechanics ka chem planner for best results

[@RoyalGaming-pm8zb]

Bro kitni aayi Percentile

[@Rohtajjeeaspirant2946]

Kaun kaun sir se sachha payar❤❤❤❤❤ karta hai,

[@pakhi3053]

Wave optics revision 🎀new concepts learned 2:59 ✅️ 7:10❌️ acervuli removing ques 🎀 13:42 theoretical ques🎀 15:24✅️ 16:22 ✅️ 18:46❌️ concept clearling ques🎀 24:45❌️ forgot about dielectric 🎀 27:27 ✅️ nice ques do again💐 35:17 ❌️ Ir=4 I° cos²phi/2 ...take care of 4I° and Imax 36:57 ✅️ 39:58 ✅️ Solve completely do again 💐 ...❤

[@mohitgoenka99]

very good dear keep learning and solving

[@xylemgamer6578]

Sir thankyou soooo much mai aapko batanaa chaata hu mai dropper hu jo Sirf aapse hi physics padhta ORR MAINE ISLIYE KOI COACHING BHI NHI HAI 😍😘🥺

[@Avictory.]

Bhai tu bass andhadundh padhte jaa.. agar makkari nhi ki to 100%ile v aaygi.. Belive me..

[@vikashupadhyay5950]

Bhai mein apni coaching Chod ke idhar aya hu.

[@keyasingh15]

Same bro

[@Avictory.]

@@keyasingh15 don't say bro. It hurts 😂

[@xylemgamer6578]

@@keyasingh15 yes don't say bro Plzzz 😢

[@Diksha-_7000]

go through points ✨ 45:16 notes 💥 46:47 👍 48:43 c= k/w 50:20 sun‼️ 52:06 cnpt ❗ 53:33 ok ❗ 54:00 chk orientation ‼️💥of gvn frmla 56:12 crisp lsn ❗Ont = p/A 59:19 utry md❗ 1:02:02 🚫refo no mis

[@satyanarayan8915]

Ye complete ho.gaya sir aur maine aapke purani vidio.kTG.and thermodynamic complete kar liya hai with notes bus aise hi session lete rahe maine aap.ka.chanal.tab paata tha jab mai.jan.attempt dene gaya tha aapki jo.ncert highlight series hai kaafi help.ful.hai.bus aise hi aasirwaad banaye rakhe hum.students ke liye

[@ThermoWrld]

for my revision: [EM WAVES] 47:09 Conceptual Good ques 56:44 Good ques, didn't knew how to approach it, learn the table in ncert

[@mohitgoenka99]

well done for completing it keep learning and solving

[@OTC24]

4:47 sir we can simple solve the question by seeing the pattern that after every crossing the intensity is multiplied by 1/2 , so we can just equate 1/2^n = 1/2^6 and where n = 6

[@SHIVAPREETHAM]

EMW-REVISE💥 47:10[Remember] 53:15[S-I] 54:32[Do it Once Again] 57:10[Good Question] 1:00:25[Refractive Index] Thank You Very Much Sir❤

[@mohitgoenka99]

good dear keep learning

[@STUDY_Mood_ON]

Is it only me who is feeling questions of wave optics in 2022 were way easier than these 2023 one 😢

[@Disha-on1ib]

EMW 47:53 basics 😕 revise 52:58 correct✅ but option b me mene kuch alag soch ke ans laayi toh usko revise karna hai 54:12 correct✅ but st 1 rev ( because i was confuse so) 55:52 I/2 nahi kiya 59:16 revise as i was not able to do it 1:01:44 rev rel. Done✅

[@mohitgoenka99]

well done on completing it keep learning and solving

[@AravJain-z4m]

My report (JEE 25): (EM Waves) Score = 4/12 Q1: NCERT info Q2: Total energy density is the sum of magnetic and electric field energy densities Q3 and Q4: First we wrote the magnitude wise relation between the three and then converted it into its vector form. Did not know that 'c' represents speed of the wave which is given by w/k, where 'k' is the magnitude of propagation vector. (I mistook 'c' as the propagation vector and directly replaced it so i ended up getting option 4) Q5: Made a mistake in the cross product of unit vectors Q7: freq is independent of medium but, wavelength of light depends on the medium and can change the speed of light accordingly. Changing intensity just means changing the no. of photons emitted and hence the speed of light is independent of intensity. Q8: EM waves are neutral in nature Q9: Did not read "by the electric field component" and made a silly error Q10: Forgot ranges of wavelengths for each EM Wave and used wavelength formula with total energy and not with the energy of a single photon Q11: Did not know the relation between refractive index, permeability and permittivity Q12: NCERT info

[@mohitgoenka99]

very good dear keep solving and learning

[@Hiten.Mahajan]

Thanks sir 80+ 🎯 score karne ki poori koshish karunga is baar

[@kalpchopra5139]

*EM Waves Jan 2023* 44:56 - Revise table (NCERT) 46:53 - Propogation Vector (NCERT) 1:00:26 1:02:48 (NCERT)

[@mohitgoenka99]

well done on completing it keep learning and solving

[@workingggg]

EM waves redo : 48:07 propagation vector k=2π/lambda 52:36 53:25 em waves are neutral 59:09 1:02:11

[@mohitgoenka99]

very good dear keep learning and solving

[@TheItachiUchiha_07]

*Timestamps* Q3 47:19 read ncert Q8 53:49 Q10 57:27 Ek baar MP pdho hojaega Q11 1:00:56 refractive index = root mewR and er

[@Skmjee2024-2IIITH]

Revise EMW q3 47:50 k is propagation vector k=2pi/L q9 55:55 Intenisty of elec = 1/2 of total inten remember. q10 1:00:00 remeber value of wavelength in gamma q11) n(refrac idex) = root e.u qs asked e/n so = e/root u.e as u =1 so qs is find root e = 5 pls rem all facts based qs. mainy applications of rays

[@AparnaJEE2025]

EM waves 1. NCERT table 8.1 2 ✅ 3. ❌ NCERT propagation vector K is 2pi/Lambda Hence speed of wave will be w/k 4.✅ Same concept c = w/k 5.✅ 6.✅ 7.❌ Speed of light doesn't depend on intensity 8.❌ Electromagnetic wave is neutral in nature so it will not get deflected by electric and magnetic field 9.❌ Ie = I total/2 10. Energy of one photon is hc/lambda 11. ✅ 12. NCERT Ab ncert ko bhi izzat dena padega 🥲

[@Aditi-w4n]

17:00 first minima from central fringe 25:00 42:12 agar dobara coincincide karana ho

[@mohitgoenka99]

Well done on completing it keep learning and solving

[@udbhav227]

mazaa aagaya sir Thank You!

[@anhad2093]

45:34 NCERT 47:44 propagation vector 52:37 revise 57:47 NCERT 1:03:03 NCERT

[@SarthakYadavdsgj]

In the last wave optics questions at 41:10 we can also do one thing which is that this type of concept we have learnt in maths as well in common AP so we can take LCM of both the wavelength that is LCM of 800 and 600 i.e. 2400 and then we can apply the formula D lemda/d

[@Shitalshaw2620]

32:00 *Good Question* _Which clarify your mind that what is the level of mains._ _& sir's amazing explanation understand quickly..._

[@mohitgoenka99]

well done dear keep solving & learning #learnlikeneverbefore

[@digvijaysinhvala6459]

Surat Wale Sabhi sir Physics bathiya padhte hai hamare classes mai bhi ak sir ate the vo bhi Surat ke the vo bhi jabardast padhate the❤

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

Wave Optics Conceptual 14:25 Tricky 18:39 22:12 New Typology 26:50 Mistake - Inet wle formulae m phase difference as it is nhi rkhna usko divide by 2 krke rkhna h. Thank you sir ji ❤

[@mohitgoenka99]

very good dear keep learning and solving

[@abhinavgarg3906]

Sir, no one can beat ur efforts

[@DRIPWOO7]

thank you for providing subtitles sir helps those who dont understand hindi a lot

[@DesiBoy-tn9lq]

Sir, Mai to physics pdhna hi chor diya tha . Achanak ek din mere KZbin pe aapka KTG ka lecture aaya or Mai aise hi dekha or us din ke bad se mere andar physics ki lekar gzab ka confidence aaya hai . Thank you so much sir❤ .

[@laraibmisbahimran2637]

Communication system Alternating current Em waves completed Now moving to next topic

[@crazykanna7624]

Alternating current chapter easy hey kya bro???

[@laraibmisbahimran2637]

@@crazykanna7624 yes

[@crazykanna7624]

@@laraibmisbahimran2637 IIT aya kya? Bro

[@SHIVAPREETHAM]

Wave Optics-REVISE💥 10:22[Brewster's Angle] 16:21[*Do it Once Again*] 22:49[Do it Once Again] 26:33[New Type of Question] 39:12[Repeated] Thank You Very Much Sir❤

[@mohitgoenka99]

well done dear #learnlikeneverbefore

[@TonyStarkIndian]

Thank You So Much Sir. 🙏🙏

[@RohitKumar-ou5qz]

Wave optics me ab clarity aa rha hai.... Sir❤❤❤❤❤❤❤

[@mohitgoenka99]

very good dear keep learning and solving

[@maruthy1234]

Sir can you please take a ncert session for those hidden concepts in vast chapters please

[@prakharsrivastava2267]

5:05 conceptual 7:44 formula 11:02 17:35 repeated pyq 22:50 ref index 30:19 ques worth saying good 34:18 easy peasy 40:35

[@mohitgoenka99]

well done for completing it keep learning and solving

[@snehakumari4326]

47:18 k 52:00 1:01:48 53:27 em waves are neural 55:26

[@mohitgoenka99]

well done on completing it keep learning and solving

[@anshika5327]

em waves: 47:10(propagation vector), 53:23(em waves are neutral so wont be deflected by electric/magnetic fields), 54:30(sawaal dhyaan se padho), 57:15(need to learn that table now), 1:00:30

[@sanskritimishra-de1de]

Revisit (Emw) 46:58 51:51 1:02:42 Note: electromagnetic waves are neutral hence they are not deflected bu electric or magnetic field

[@mohitgoenka99]

wonderful dear keep learning #learnlikeneverbefore

[@probablyantisocial]

done revised 4;48 am 26;2;24 EMW Q3 propagation, redo Q7 speed of wave in medium depends on wavelengh, doesnt depend on motion of source Q8 EMW are neutrally charged hence not deflected by E and B Q9 intensity due to E only, silly mistake Q10 good question. equate through basic method for photon and energy and then use hc/wavelength

[@divinesatyam3341]

For wave optics 09:47 concept revise 16:21 good question 22:40 ek bar aur karle bhai 26:44 do medium ek bar me beautyful qn 39:52 ek bar review karle bas ForEm wave 45:50 50:20 54:39 56:59

[@mohitgoenka99]

well done dear keep solving & learning #learnlikeneverbefore

[@curio369]

For Self Rev ⚡ - 4:23 [ Revise this tpe of variety] - 11:58 [ Brewister ka Concept revise kar lo ques se] - 23:13 [ Must see problem] - 30:45 Csquare - Darawane ques concept chindi - 36:16 [Major silly mistake ki phie/2 karna hamesha bhul jaate ho value rakh ke ] - 42:03 [ Dhyaan se dekh lo iss wale ko] isme hamesha smallest ratio rakhna hota

[@mohitgoenka99]

keep learning and solving #learnlikeneverbefore

[@avani6040]

q3 47:20 here K is propagation vector, 2pi/lambda wala, & c = omega/k (wave velocity) & B=KE/omega q7 52:20 theoretical q8 53:15 theoretical q9 55:04 silly mistake, only electrical so div I by 2 q10 58:46 remember spectrum table

[@AshishBaranawal]

Yes sir I have read all points as you told us about me wave from ncert

[@navhis]

12:00 important. 24:18 pta nhi tha 36:00 48:47 CEB 50:00 sili1:01:00

[@anushsakineti2778]

Thank you sir you helped me a lot

[@lawkumar1475]

Wave optics 2023 pyq done ✅✅ Em waves 2023 pyq done ✅✅ Thanks sir ❤❤

[@aditya_mishraa001]

Em waves question no. = 10 Ncert reading 💝

[@mohitgoenka99]

well done on completing it keep learning and solving

[@MamtaVerma-ee5dv]

Thank u so much for this session 😊

[@Shubham.4xx]

Wave Optics- 5:52 (REVISE) 9:56 (REVISE) 22:20 (Revise) 26:36 (GOOD QUESTION) 39:32 (REVISE) Done, Thank You Sir!❤❤

[@mohitgoenka99]

well done dear

[@Shubham.4xx]

@@mohitgoenka99 Thank you so much 🙏 sir! ❤️❤️

[@aditya7483]

Ek he dil ha sir kitne bar jitoge😊❤

[@gauravagrawal301]

Wave Optics Revise ❤ Doubt pt : 9:53 Factual good 16:08 Good One ❤ 29:22 Good Doable 39:10 Tough

[@rishabyadav181]

21:16 sir yaha + kyu nhi , × kyu polariser dono ko cross krega toh 2 bar formula lgana pdega na seperately

[@surendharsakthinathan8400]

Thank you sir bahut acha ......sir ❤

[@saee_0407]

Jan attempt qs of em waves done .... Thanksss a lot sir :)

[@mohitgoenka99]

well done dear #learnlikeneverbefore

[@vanshbisen9674]

Wave Optics-REVISE💥 10:22[Brewster's Angle] 16:21[*Do it Once Again*] 22:49[Do it Once Again] 26:33[New Type of Question] 39:12[Repeated] Thank Yo

[@mohitgoenka99]

well done dear keep solving, learning & revising #learnlikeneverbefore

[@Dyson2024]

Revision 9:45 22:21 26:54 33:07 39:07 46:54 49:51 51:50 57:13 1:00:12 1:02:30

[@mohitgoenka99]

keep solving, learning & revising #learnlikeneverbefore

[@Dhruv_0529]

Guruji ghar pei bait kei to saare ques ho jate hai bina revision kiye hi lag bhag saare ques ho jate hai but mains mei jab baithe the to dar gaye the to kam que ho pai the is baar mains mei darunga nhi

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

EM Waves Conceptual 48:59 53:11 Tricky 56:43 Optics Mixed 1:00:19 Silly Mistake 50:57 Thank you sir ji ❤

[@bhumichhabra07]

Notes for self :- * The average electric energy is equal to average energy density of emw *c=w/k *k is propagation vector i. e, k=2 pi/lamda *emw is not deflected by electric and magnetic field * Intensity= d/4pi r² Due to electric field it is 1/2× d/4 pi r² *c in medium = c in air/ refractive index , refractive index=√u√€ **** read ncert highlighted points.

[@KRATOS-j8l]

Total average energy density= 2*average elelctric energy density

[@jayasingh7357]

Thank u for being here❤

[@Prakharbandi]

EM Waves revision completed! feeling confident now, thankyou sir! revise 1:02:21

[@mohitgoenka99]

Keep solving & learning #learnlikeneverbefore

[@Priyanshusinghiitian001]

Hi bro, aapne MATHANGO ka test series liya hai na I HAVE SEEN YOUR WITH SAME DP , (Test series ka result dekha rha to dikha tha )

[@ankeshsingh7154]

Thank u very much sir 💕💕💕

[@prakharsrivastava2267]

EM WAVES 48:19 new type 52:15 54:07 54:48 / 57:53 1:01:20

[@mohitgoenka99]

well done on completing it keep learning and solving

[@palakgupta2217]

revision emw : 48:37 52:02 54:42 1:00:57

[@Prakharbandi]

Solved all!! revise [wave optics] 5:10 12:04 22:30 good one 26:40 *30:25** two slabs* very imp 34:16 41:16

[@satyanarayan8915]

Thank u so much for this session

[@arpitgupta2004]

Thank u sir, because of u now I am atleast touching 80 marks in physics

[@Shubham.4xx]

EM Waves- 46:58 (REVISE) 54:25(REVISE) 1:00:21 (REVISE) Done, Thank You Sir!❤❤

[@mohitgoenka99]

#learnlikeneverbefore

[@Shubham.4xx]

@@mohitgoenka99 Thank You so much sir🙏❤

[@avishekzt8603]

Wave optics-3, 5,7,8,9,11 Em wave 1,7,8,9,10,11

[@mohitgoenka99]

well done for completing it keep learning and solving

[@iamA0509]

45:17 remeber 🌀 46:54 51:53 53:17 54:34 57:17 recheck

[@ex-jeeaspirant24]

block 4 started today q5, q7, q8, q9

[@AravJain-z4m]

My report (JEE 25): (Wave Optics) Score = 6/11 Q1,6,7,10: Makes an angle of 45 means that the pass axis is rotated by 45 degrees. In the formula, theta is the angle rotated w.r.t. 2 consecutive polarizing sheets Q2: Central Maxima ka matlab hai that path difference is 0, so basically the path difference created due to the thin film should be equal to the geometric path difference (Remember the formula) Q3: Did not know that tan(Brewsters angle)= mu of medium jisme jaa raha hai / mu of medium jisse aa raha hai Q5: Forgot formula and did not observe that y = a/2 Q7: Forgot that Dielectric constant and relative permittivity is the same thing Q8: Pyaara savaal (Two films in YDSE) Same concept as Q2 Q9: Forgot formula Q11: Did not understand how to use 'coinciding' info. We also have to take the lowest ratio as they asked minimum distance

[@vanshikagoare4258]

Op session 👍

[@AmitKumar-uw4ro]

You are the best teacher sir, I have a ever seen Sir thank you♥️

[@anonymoususernearyou]

Sir commendable efforts, will start watching all videos from tommorow and parallely cover mains and boards!

[@NeilAgg.]

emw ques -1,3,9,10,12

[@lakshya3199]

Questions for revision 07:00 27:00

[@AyushJyotishi]

Bro thats iitk means kanpur in ur username?

[@lakshya3199]

@@AyushJyotishi Yes, but it is just an aspirant type thing!

[@AyushJyotishi]

@@lakshya3199 bro where r u from😀

[@lakshya3199]

@@AyushJyotishi I'm from Varanasi You?

[@AyushJyotishi]

@@lakshya3199 Kanpur 😁

[@Priyanshusinghiitian001]

Thankyou so much sir ✅💙💯✅ Qno 10) 57:16 Good one : should must revise

[@mohitgoenka99]

well done dear keep solving and learning #learnlikeneverbefore

[@unkown9685]

22:57 sir i learnt this method of solving this question from you yesterday....today my mam asked me to solve this question i solved it very well ...didn't even missed a step.... Thank you so much sir....🙏❤

[@shreyansh.ch_]

Learned a new , question solving technique thank you sir ❤❤❤ 41:50

[@Yashika.Bharati]

22:36 easy but try 27:11 good question 37:02 problem in angle understanding 39:09 try again(lack of revision)

[@shifanaz500]

sir +4 marks series me ek video bana dijiye please jisme mue(r) epsiolon not relative permeability dielectric constant in sab ka interconversion and inter-relation bata dijiye.

[@Irkntl-rm8qe]

9:52 theory 26:54 vgq 33:24 sgq Emw 46:54 53:18 54:33 intensity sgq 56:51 gq

[@mohitgoenka99]

well done on completing it keep learning and solving

[@Amaan_khan334]

53:10 is ji is question main optn D incorrect hoga na kyuki ....Intensity i =1/2epsaylan not E square into c hota hai ....

[@adyasingh1603]

toh uska speed se kya Lena dena

[@Amaan_khan334]

@@adyasingh1603 Us formula m intensity directly proportional h na speed of light ke

[@Yuvrajsingh-3ub]

Target 95+ in physics Only because of you

[@mohitgoenka99]

well done dear

[@vishwajitkumarsingh-wt1hi]

sir next chapter jaldi bata dijiye shedule me confusion ho jata hai pls sir . thanks for this session

[@mohitgoenka99]

semiconductors and communications

[@vishwajitkumarsingh-wt1hi]

@@mohitgoenka99 thamkyou sir

[@TttRightnow]

​@@vishwajitkumarsingh-wt1hi welkome🎉

[@cpverma10]

Video bahaut Jayda helpful h thankyou

[@mohitgoenka99]

keep learning dear #learnlikeneverbefore

[@UzumakiNaruto-bw7tl]

Done sir all were correct except 3 ques.

[@anish8202]

i only revise ydse and didnt revise polarizer but after solving first que with your help I did rest of the polarizer que

[@ganeshapandey]

13:42 theoretical ques🎀 24:45❌ forgot about dielectric 🎀

[@TheEduverseLab]

5:35 CONFUSED IN 5OR 6 IMPORTANT 3RD , 5TH QUESTION,6TH

[@subhashreepanda6747]

Thank you so much sir .💖🙏

[@LETSTAKECHALLENGE-r1q]

21:13 ANGLE KO HAMESHA JUST PEHLE WALA POLARISER KE RESPECT ME LEYE JATA HAI 26:39 GOOD QUESTION 41:14 VERY GOOD QUESTION E.M. WAVES 46:46 EK NAJAR 49:00 K KO PROPAGATION VECTOR BOLTE HAI 51:53 NEGATIVE KARANE WALE QUESTIONS

[@KRATOS-j8l]

Sir in the question at timestamp 52:57 the option (c) shouldn't be correct because if the source is moving with some velocity and is emitting light then the relative velocity with respect to source will be same always but the velocity of light wrt ground will vary accordingly?

[@SubhamNITALLAHABAD]

Sir in question no 9 I do mistake I tick the answer 1/40pie .. I forgot that there is electric field vector too .. 🥲

[@50me0nee]

Thank you very much sir.... ❤

[@mohitgoenka99]

Most welcome

[@Heisenberguncertinity]

56:27 sir i have doubt option d hona chaiye na? Radius 5 m kyu nhi liya apne

[@shreyakumari30]

8:23 B is fringe width 😮, 11:37,42:14

[@Sadlife0007]

✔ day 13 dhanwad sirr❣

[@Travvelers01]

EM waves** Q1✅ Q2✅ Q3❎ Q4❎ be careful with k(2π/lembda ) Q5✅ Q6✅ Q7❎ speed of light dependents on wavelength in a medium c=wavelength × frequency Q8❎ em waves are neutral so no force will be applied on them Q9❎ Q10❎ Q11❎

[@mohitgoenka99]

well done dear #learnlikeneverbefore