Thermal Properties Of Matter 07 | Heat Transfer : Radiation 02 | Wiens Law n Stefan's- Boltzmann Law

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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.
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3)PDF Notes of each class.
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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)
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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.
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Thermal Properties Of Matter 02 || Thermal Expansion -All Concepts for JEE MAINS/ NEET
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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 KZbin) 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 Physics chapter 11 || Thermal Properties Of Matter 01 || Heat and Temperature |Temperature Scales kzbin.info/www/bejne/sKGyfGetn6hnnpY Thermal Properties Of Matter 02 || Thermal Expansion -All Concepts for JEE MAINS/ NEET kzbin.info/www/bejne/b6GuiZaCoK6Ai9k Thermal Properties Of Matter 03 || Calorimetry - Compilation of Old Videos || kzbin.info/www/bejne/imi1oWSin7Cpo7s Thermal Properties Of Matter 04 || Heat Transfer : Conduction part 1 | Heat Transfer JEE MAINS /NEET kzbin.info/www/bejne/l6bapZeqp86sitU Thermal Properties Of Matter 05 | Heat Transfer : Conduction part 2 Equivalent Thermal Conductivity kzbin.info/www/bejne/jXq6cmB4jstsgLs Thermal Properties Of Matter 06 | Heat Transfer : RADIATION : Black Body and Krichoff's Law JEE/NEET kzbin.info/www/bejne/m2mUoaKCpa6tfqM Thermal Properties Of Matter 07 | Heat Transfer : Radiation 02 | Wiens Law n Stefan's- Boltzmann Law kzbin.info/www/bejne/b3fRqneBbt2EoKc Thermal Properties Of Matter 08 | Radiation 03 | Newtons Law Of Cooling JEE MAINS/NEET kzbin.info/www/bejne/gJXbY3-AebeWgJY

[@AbhishekSingh-ei6jn]

Sir please make video on SHM

[@rutwikshinde6021]

Sir please please don't skeap any topic or different types of questions let the video be of 1 and half hour I also request you to make another video oddfor numericals

[@sakshamnayyar2083]

Lol

[@radhehkumar4965]

Mitar doo

[@temibutt1595]

Sir please quantum mechanics basics py ak video bnaey..

[@sudhansusekharsarvangia3600]

Sir in the question of JEE 2002 lamda1 < lamda3 < lamda 2 and T1 > T3 > T2

[@shivrammohan9081]

Vahi mai bhi socha

[@manaslaud2465]

Ha bro u r right even i got confused

[@sjskskismagic2373]

✅

[@shreekanthgr9157]

Ha Second option is correct ☺️

[@basantibehera5321]

Lagta hai graph upar niche kardiye

[@sridharpatra5278]

At 23:17 kya lambda K order 12 hoga Shayed...??? 💤 💤

[@PhysicsWallah]

Yes that's a mistake

[@sridharpatra5278]

Thank you sir.. ☺ ☺

[@chiragkumar7526]

Yes

[@chiragkumar7526]

Thanks sir for your answer

[@roshanrajmahato480]

@Kunal Gupta No yaar by area under graph WAVmax is also 1

[@fullmauj]

Today's date - 11/01/2024 Still irreplaceable content ❤ Hats off🙏🙏

[@KajulYadav-e6k]

True

[@Rtk949]

I am also

[@henajabeen5608]

Timestamps Black Body Radiation Oral Explanation - 2:55 Graph of Intensity v/s Wavelength - 4:20 Explanation with example values - 9:16 Wien's Displacement Law - 11:08 Area under Graph + Proportionality with (T)^4 - 16:53 JEE 2002 Qn - 21:20 Answer of this question is (b) and not (c), Sir has made a mistake. 1997 Qn - 23:45 Recap - 25:38 Sun and Marker example for Concept Understanding - 26:34 Stefan-Boltzmann's Law - 27:24 Formula for Power radiated by Perfectly Black Body and for Other Bodies - 31:22 Emissivity for Bodies other than Black bodies - 32:54 Q1 - 36:05 When Surrounding Temperature is mentioned - 39:06 Q2 - 41:00 Mixing of Stefan's and Wien's Law - 45:37 JEE 2015 Advanced Qn - 46:34

[@hitman-dt2ey]

Again thank u

[@Manu-ub5uo]

Tq

[@SweetyKumari-t6b]

Which AI did you use could you please tell?

[@rudragadhavi563]

41:00

[@anishsbanugohil5652]

Thank u so much ☺️

[@gravityphysics7601]

helo sir..i want to say u something...sir i belong to a family who could not effort tuition in all the subjects.....so i thought i could never do something great in my jee....but after watching some of your videos...now my dream became alive...i have some confidence that i can do something.........❤❤❤❤❤...its a very great help for me that u post several videos ...and your teaching is amazing.......u are a great teacher .GOD bless u ,,,sir

[@David-kj7el]

Bro dont worry we will make sir proud

[@anupamkumar7020]

Exactly bro

[@apayishabi8275]

@@anupamkumar7020 sahi bola

[@Zabuza_here]

Aameen

[@thegoalchaser4980]

This comment is 1 year ago ... Just wanna ask you @gravity physics... Kaisa hua tha tumhara JEE 😇...score kitna aaya bro 🥺... N abhi konse college meh ho !??? 😊😊

[@meghnachowdhury6982]

2002 jee question correct answer will be = b) T1>T3>T2

[@Anoopsingh-tv3zb]

Haan sir ne thoda galat likh diya tha kyunki lamda 2 greater than lambda 3 greater than lamda1

[@raashisharma7941]

Bt according to the area under the graph he is correct......actually the graph given is wrong....u can check the previous year question papers of jee

[@meghnachowdhury6982]

@@raashisharma7941 Ok ..are u sure regarding this?

[@vijaysingh1897]

I agree with you

[@unmeshmeher7764]

So which answer should be considered correct

[@hridayvaghasia2533]

@23:32 Sir, but you said that every black body has the same graph for a given temperature and the peak( lambda max ) shifts to shorter wavelength as the temperature increases so according to that it should be T1>T3>T2

[@kartiksharma1787]

shi keh rha hai bhai tera tab bhi tera iit niklega 🌊

[@shoryabhatnagar5048]

# 44:55 it will come more than 1 as 42/40 .... But what matters concept must be clear..

[@padarbindamishra9004]

22:59, sir here lamda 2 is greater than lamda 3 is greater than lamda 1. And T1>T3>T2.and according to this intensity of T1 should be more but it has least Area than all . (Area is directly proportional to T^4).How sir??

[@bijankumar012]

Sir apko jsi hi dekhta hu toh malum hota hein ek misal Jo itne sare bacche ko padhate hein Orr unko jiban mein kuch Karne ka hosla dete hein ....Thnq very much sirrrr .,I respect u a lot. 💝

[@risin_storm5564]

I came here for only Wein's law but can't resist to watch the whole video you are awesome sir.

[@digiartandnature7249]

Me also 🌚

[@me_Ahuja.x]

How much time it takes you to compete one physics ch like this one

[@risin_storm5564]

@@me_Ahuja.x Honesty saying I'am very inconsistent in studying one shot videos in one go so I cover them in parts maybe 2-3 days for a 5-6 hr video

[@cloud11_raptor3]

@@me_Ahuja.x I usually complete a chapter a chapter of this length in 2 days

[@jeeaspirant7206]

@@cloud11_raptor3 kar koi fyada nhi hoga bhul jaoge ye tum bhi jante ho .

[@KrishnaKumar-kh5iu]

I know my comment might come across as just another fanboy praising Alakh Sir, but I have to say that his explanation of the concept was truly exceptional. I searched extensively on KZbin for an explanation in Hindi, but none of them came close to the level of clarity and understanding that Alakh Sir provided. His way of simplifying complex ideas and presenting them in an easy-to-understand manner is truly remarkable.

[@molayghosh235]

Sir the effort you put into the students is more than even themselves...I Oblige it...That's only encourage ment we can give you.. in return what you do for us. Thanks 😊

[@sinydominic6677]

I tried to study it several times but you made it simple

[@brownie7535]

😭😭😭😭😭 sir khushi ke aasu to have a teacher like you.How to say thanks to god

[@siddharthasaxena8208]

By 10th we know the value of only these main constant, avagadro no.and G...and second is g And after 10th We get so much constant and its value to learn🤦‍♂️😄

[@dhruvpawar3733]

yeh sirf noobs ko 10th ke baad pata chalta hai smort people already know all this

[@anshujoshi2162]

@@dhruvpawar3733 umm so did ya know coefficient of viscosity and Boltzmann constant in 10?or equilibrium constant or any constants in 11? Huh

[@dhruvpawar3733]

@@anshujoshi2162 have you heard of foundation courses have you looked at nsejs syllabus???

[@sukhpreet9940]

@@dhruvpawar3733 but noobs ko kam se kam smart ki spelling pata hoti hai . Don't mind it .

[@fear7356]

@@dhruvpawar3733 Studying for nsejs or ntse, that is studying harder from before doesnt mean you are just smart, most people enjoy till 10th because from 11th onwards whole life will be hard work

[@zaheerhussain1381]

Sir u r doing very well...m sure that u will surely complete syllabus on time..dont hear anyone..u r great do what u want..we beleive on u

[@me_Ahuja.x]

How much time it takes you to compete one physics ch like this one

[@satoffi]

​@@me_Ahuja.x2 to 3 days In average.

[@virajgovilkar6246]

The Legend is is back again, giving us the lesson of 'No Pain No Gain'. Hats off to your hard work sir.

[@me_Ahuja.x]

How much time it takes you to compete one physics ch like this one

[@swastikizhere]

22:47 we get b) T1>T3>T2 ....ig sir mistakenly wrote the reverse order of λmax for the graphs cuz it should have been λ2>λ3>λ1....so inversely... T1>T3>T2 ..by both area concept and wavelength concept ...If we go by area....area for T2 is max....therefore temp T2 is minimum....accordingly it should be (b) in either way

[@AjendraRai-c1d]

yes... i have been searching for a comment like yours... i wonder why very students only corrected him in comment section😅

[@anjalidongare8777]

I really did say that To use thermometer for calculating the temp of star 😂😂😂.......and this thing indicates that how perfectly he knows the mind set of students.......... Really sir, hats off to u sir!! 😊

[@me_Ahuja.x]

How much time it takes you to compete one physics ch like this one

[@sumanag7343]

@@me_Ahuja.x did u mean to complete watching vedios of one chap or to prepare?

[@Riya-px9db]

@@me_Ahuja.x Around 2 weeks if it's long ( cause i am also attending regular tution ) , and on top i watch it at 2× speed, 1 week if enough for this chapter , otherwise 1 and ½ if you've got other things to do .

[@naxtisy]

@@sumanag7343 vedios

[@devamshvarma5953]

23:33 question lamda 1 < lamda 3< lamda 2

[@FreeFireLover-iv7rl]

Right

[@shivanitelang7760]

Rick vali dp...I love it

[@AnkitKumar-sm1zs]

lambda u mean

[@dualnature]

Yes

[@amanjha6386]

At 45:26 42/40=more than 1. Thank you sir👍

[@the_sapient]

ha wo shayad sir ne dhyan nhi diya unhone socha 40/42 = 0.9 jabki 42/40=1.05 lekin concept sir ka hamesha mastt hota h😍

[@opbrother5217]

at 23:24 i think it should be lambda 2 > lambda 3 > lambda 1 and therefore since T is inversely proportional to lambda T2

[@Rohankumar-ju8ul]

Sir in 45:08 you have written 0.9 by mistake it will be 1.05 and sir hw question????? Best teacher ever.

[@subhashsharma4455]

Right sir se mistake ho gaya

[@vidhirocks1592]

Nahi i calculated on calculator 1 is the exact answer

[@subhashsharma4455]

H to wo significant me change krenge TB na

[@missroma1562]

Yea

[@amitky9684]

Yahi comment main bhi khoj Raha tha aakhir mil hi Gaya.

[@shantonughosh1388]

Sir u are a great teacher...not from my point of view.. But from Lakhs of other students ..who constantly follow ur videos...and i think that a student is the only person who can judge a teacher....&u r great sir...thank you very much sir for ur efforts & hard work for us..🙏🙏🙏🙏🙏

[@themortalgamer2843]

Sir 26:30 me High temp par wavelength kam hogi Aur waves ki sankhya(graph se) bhi high temp par kam hogi Kaise?🤔🤔🤔🤔

[@Alokraj-pq2oo]

45:00 sir it will be 1.050 not 0.9 ☺️

[@arghyaacharjya5707]

correct

[@deejackgaming8604]

Yes you are right

[@AvadheshPandey-de9zy]

Acha hua kisi ne notice kra

[@AbhishekSingh-dy1jk]

Aaj samaj aaya temperature kese calculate hua sun ka... Mujhko to lagta tha thermal camera se calculate karte honge,,,love u sir

[@harishbahadur8917]

Sir I can't explain you are a best teacher of physics ☺️☺️

[@kiranmeena6891]

45:00 per 42/40=1.05 hoga sir

[@JS-hx1su]

Galti sbse Hoti hai bhai 👍

[@Yash.the.seeker]

are hoo gya na

[@sameergupta2501]

Sahi kaha

[@vanshgarg9422]

Bhai fir bhi answer to c hi aayega

[@Shikharpandey001]

@@vanshgarg9422 are wo toh sir rat kar aae the😂😂😜😜

[@youcandoit3786]

*_Sir HW wala question to aapne trim kr diya h video se.....koi nhi...thank u so much for this fantastic video..._*

[@ShubhamSharma-uu9yn]

Thermal properties kitna bada chapter hai.😱😱😱. Humein toh school mein 8 page ka karaya hai.😂😂😂😂

[@icebearmusic6577]

Sahi hai

[@chiragagarwal5750]

Haaaaa

[@mizanurrahaman8353]

Hnji....sir bht achee padate..with details

[@youcandoit3786]

Bhai dheere-dheere pran nikalenge school wale....abhi start kiya hoga😉😉

[@ShubhamSharma-uu9yn]

@@youcandoit3786 Haan Bhai. School walon ne to consecutively saare paper rakh diye Bina kisi chutti ke aur itne saare chapters aa rahe the har subject mein. Aaj khatam huye Hain exams....Bura haal ho gaya.😥😥😥

[@Its_Ari24]

At 23:22 the correct option would (b)...as l2>l3>l1 thus T2

[@VanshSharma-bl1pc]

SIR I HAD GOT DEPRESSED BUT NOW I AM BACK AGAIN AND STARTED MY PREPARATION. JUST BECAUSE OF YOU.

[@mirzaayman5]

22:56 nai na yaar lambda 13

[@shribramhane5664]

Sir ka fev song 👇👇👇😂 1 2 3 4 Get on the dance floor 😆🤣🤣 👌👌👌

[@mhj.xd7]

I REQ STUDENTS TO SEE THE ADS IF THEY ARE WILLING TO HELP #alakh_sir !!! because if you skip the ads then pandey sir will get only 1/3 of the amnt through adsense !!!

[@kuriouskid1285]

Save time and money..... Donate it all to sir after clearing exam... Better idea with more money

[@sujalchede3928]

@@kuriouskid1285 go on his app SIMPLE

[@anshujoshi2162]

@@sujalchede3928 or better just study he is stable rn

[@-Rajstar]

**Note: Horizontal part of graph will be energy per unit area per unit wavelength Cheek in ncert page 294 (physics II )

[@kanchcreativity7233]

at 22:17 sir uh have put the order wrong...according to the concepts I learned by uh.. it will be lamda1

[@sandhanshugarg6878]

Sir fluid left part : coins problem and renoylds number must do in future

[@ahmerrashid5328]

Aur combination of fluid bhi baki hai series and parallel

[@deepinside8408]

bilkul sir ji

[@dhruvinvekariya975]

Bhai coin problem ray optics me hai

[@aayush4635]

Sir me aapke saare lecture dekhta hu or notes banatu hu kyuki I am a jee aspirant and i want to become a IITian , sir mene aapke jitna junun or kisi teachere nahi dekha .

[@sudhanshusingh2467]

Great sir But the lecture ends abruptly please check it happened in one of your previous video

[@mdtouhidmomin7889]

Sir 23:18 ..lamda 12

[@hardikgupta7856]

23:17 min. par lambda ka order 1>3>2 hoga shayad sir.

[@varungupta1404]

48:10 Thankyou so much sir I got the JEE ADV 2015 Correct in first Attempt 😁😃

[@sparshraul4671]

Mera toh har ek jee advance ka sawal correct hota hai

[@Abhishek-wx9xx]

@@sparshraul4671 😂😂😂😂😂

[@Abhishek-wx9xx]

@Mark Ruffalo 👏😂😂😂😂😂❣️

[@sparshraul4671]

@@Abhishek-wx9xx mazak nahin kar raha hu

[@beehunter.]

@@sparshraul4671 bhai tu kaise prepration kar raha hai coaching rakhi hai kya?

[@RosanPradhan-y5s]

Many people think sir was wrong in graph question but.... Answer was correct Because lamda Max is not equal to maximum wavelength Lamda Max is equal to wavelength in which intensity is highest in spectrum

[@Standforthetruth18]

Well, I completely agree and if you see the graph, intensity is highest in lamda 2.

[@rutujawadatkar6280]

sir can you please make video on concepts of elements of earth's magnetic field because almost all students suffer from not understanding it conceptually and i havent found any video completely helpful..please can you get time to make one video over it

[@KingFireMc225]

44:56 42/40 is 1.05

[@sreyasrao9894]

Sir you are like a black body you emit 100% of the knowledge you absorbed

[@piyali5168]

i was extremely happy after solving JEE advance 48:30 problem on my own . Thank you so much sir.

[@shreyanshkarpatel3780]

But can you tell me that how answer has come 2 it should be come 4 when we divide it by 1/4

[@سيدةالشيف]

because it is easy......................i just solved now

[@aatifhasan440]

@@سيدةالشيف yah it was one of the easiest question of that year maybe.

[@me_Ahuja.x]

How much time it takes you to compete one physics ch like this one

[@aatifhasan440]

@@me_Ahuja.x don't compare. Do everything with your own speed.

[@drishtiparashar7420]

so shocked to see 60 dislikes ......vo log ess planet kae he nahi hai ......and sir ty for such a great lecture ........yeh concept kabhe samaj he nahi aata tha ...but now .....it is very clear ....thankyou so so much sir

[@geedinikhil9561]

At 23:29 observe area under the curve,sir's answer was right

[@AnkitKumar-yk7hv]

Sir in 45:08 the value of power should be 1.05

[@Aizalfatima31]

Boht boht shukriya sir .aap nahi jante sir aap meri kitni help kar rahe hein .Allah talah aap ko hamesha khush aur aise hi ative positive minded rakhe.ameeeeeeen🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰

[@user-wi8sz2dg4p]

Please make a video on impulse power and rocket propulsion please please please please please

[@saatvikkumar4284]

Rocket propulsion me toh mass hi variable hai

[@abhishektomar12tha28]

Hc verma s pdh lo

[@priyanshuraj6714]

23:17 but lambda 2>3>1 so temperature order would be 21... So which is right?? I am confused...

[@karanvirsingh2830]

Sir did a mistake 😀he has told it in one of the comment

[@inderpalsingh7900]

@@karanvirsingh2830 yeah bro I saw it in the second comment

[@nishalm1750]

Irony: The only teacher on youtube.....who does not ask us to like share and subscribe 😁😁😁

[@charith6670]

Bcoz, he has sufficient likes views and subscribers 😏

[@mayuripatidar4043]

@@charith6670 bcoz he has sufficient teaching skills that's why he never need to ask for likes 😊

[@LakshKapoor]

Rhis is not irony man

[@kabitamittal3814]

Sandeep Maheshwari

[@theadieke6584]

@@LakshKapoor irony is that his videos constantly get high no. of views when he doesnt even not self-advertising

[@btkgaming008]

25:25 :- Sir in this question ans is 0.69 Because Lamda of sun is 510. Therefore, 350 ÷ 510 = 0.686.❤❤ ~0.69❤❤❤😊😊

[@ullasdcosta529]

i salute ur teaching on such a theoritical topic ,the flow in which you taught was way admiring!Thank you so much

[@pratikjadhav1224]

🎉

[@sumitgarg1129]

12:30, sir kehna chah rhe hai ki lambda max is most probable wavelength

[@gouravsharma8907]

The One and only Legend Alakh Sir . Sir ,just loves your lectures ❤️ All concepts clear !

[@Ajayvlogging0099]

23:20 correct answer is b

[@aloksharma1024]

Is here anyone who is seeing this during corona days

[@silktouch9999]

Me

[@DeathShock28]

My quarantine binge watch

[@aloksharma1024]

Study kaise chal rhi h ...kya phle se kam padhne lage ho ya jyaada............who will give jee 2020

[@uzairahmad5281]

Meee

[@MurtazaKhan-pi5co]

Yo

[@RakeshKumar-uq7my]

Answer of jee 2002 is wrong while considering comparison of wavelength... Option b is right and not option c

[@mrattitude4342]

Without Watching I am sure your video is best 👉👍

[@4_chaithanreddy471]

Bai soja

[@aaryanapte]

Sir, at 23:16, answer (B) option hona chahiye na?

[@anonyms5992]

Yes....

[@vikramthakur4967]

Even Pandey ji knows @BBKiVines 41:03. Pandey ji OP in the chat

[@gauravpandey2071]

सर आप पढ़ाते भी अच्छा हैं.......... और गाते भी अच्छा है....👌🙏

[@mahimameshram3101]

23:12 sir lambda should be ʎ₂>ʎ₃>ʎ₁ and temperature T₁>T₃>T₂

[@imsumitbhade]

Yess truu, that lamba ain't in my keyboard😑

[@ansariasadmasoodiqbal1723]

Q. Main 3 different black body deya hai.... Area under graph is directly propotion to T^4 ye lago.. Then you all realize that sir is correct..mujhe (or sir ney kha bhi peak wali bat hamesha shi nhi hoti)

[@padmalayatripathy8153]

This lecture you missed the summary which is very much interesting. Thank you sir for your efforts that we are able to say that physics and chemistry are very easy subjects.

[@me_Ahuja.x]

How much time it takes you to compete one physics ch like this one

[@RK-bz9ps]

Sir jab koi object ki wavelength earth par ayegi tab uski wavelength toh change hogi kyu ki vo earth ke medium me travel Kar rahi hogi toh usse uska actual temperature kaise nikalega

[@ujjwal980]

Sir I like the way u teach.I have never seen such a hard working teacher like u.☺☺

[@me_Ahuja.x]

How much time it takes you to compete one physics ch like this one

[@nehayadav1470]

Sir jo blackholes hote h, vo light ko absorb to kr lete h completely but law k hisab se unhe boht kuch emit bhi to karna chahiye, aisa kyu nhi hota??

[@gauravchaudhari9581]

23:08 i getting confused for 10 min.😁😀 sir answer given by you is wrong but no problem insan hai ho jata hai kabhi kabhi😀😀

[@DeepaDeepa-xf3gp]

but sir said that if there is a mistake take care

[@killerguy8802]

@@DeepaDeepa-xf3gp bro wo baat nhi hai ans samne hai phir bhi galat bola sir ne

[@sohiltonnur]

@@killerguy8802 wt is the correct answer

[@omkargoswami471]

At 45:25, 42/40=1.05 hoga sir.

[@roshanrajmahato480]

Yaaa sir . Star pee jaakaar thermometer se temperature napugaaa 😁😁😁too funny sir

[@M30xtra]

✨Some Questions For practices✨ 1. A hollow glass cube of side 10 cm is filled with ice at 0 °C and is placed in a container filled with water at 0 °C. If the thickness of the glass cube is 2 mm and the thermal conductivity of glass is 0.002 C.G.S. unit at what rate will the ice melt?(Ans-266) 2.A hollow glass cube of side 10 cm is filled with ice at 0 °C and is placed in a container filled with water at 0 °C. If the thickness of the glass cube is 2 mm and the thermal conductivity of glass is 0.002 C.G.S. units at what rate will the ice melt? (Ans-7.2) 3. One end of a 0.5 m long metal bar is in steam and the other in contact with ice. If 20 x 10 kg of ice melts per minute, what is the thermal conductivity of the metal? Given, cross section of bar = 5 x 10 m² and latent heat of ice is 80 k cal/kg.( Ans: 266 cal s m K) 4.The ratio of the radiant energies radiated per unit surface by two bodies is 16:1. The temperature of the hotter body is 1000 K Calculate the temperature of the body. (Ans- 500 K)

[@jahnavigupta4646]

14:54 sir sir sir😂😂😂

[@shikharmehar3388]

😂😂

[@ASHOKKUMAR-ry6cg]

Ti>t2>t3

[@_prateekkumar]

38:38 SIR YOU NEVER MAKES THE LECTURE BORING

[@NirajKumar-eu5vi]

14:56 😂 by the way best teacher for physics in the universe......🙂🙂🙂⭐⭐⭐🌟🌟

[@physicslover7238]

Physics wallah Amar rahe

[@allindia712]

😊😊😊😊

[@riyasorout6364]

i am taking coaching in aakash but i stuied in youtube because there teacher's teaching way is 😒😒😒but alak sir studing osm .......how many studing watching this video in 2023 ......

[@tusharbhatia870]

sir lambda ka order 12

[@sskumar5434]

I like it App radiation 01 lecture dekh sakte ho ya book se bhi pd sakte ho👍👍👍👍👍🙏🙏

[@shaill.5]

This is fantastic seriously. I left my coaching for this. Hats off sir. Thank you so much😊😊

[@anketpatil2905]

Sir, at 34:50 aapne e=a prove kiya hai. Lect Radiation 01 me aapne prove kiya Tha E/a = constant= E(b) Toh E/E (b) = a By definition E/E (b) = e Therefore e=a. #physicswallah

[@adarshmaurya1708]

In question jee 2002 lamda 1 T2.........

[@dualnature]

Yes option 2 is correct

[@akritisharma1096]

Congratulations sir 15 million subscribers

[@praksparks7000]

22:58 Lamda 1 should be the smallest

[@i_am_rahul666]

Sabse best alakh sir , rg sirse bhi acha 😤

[@mahendrakumarlekhpal2255]

35:57 huge pain of struggle behind his smile is seen clearly

[@tejchandarana4026]

😳

[@renubishnoii3421]

At 23.17 the correct answer is (b)

[@faizanahmed5368]

Love you sir, thank u so much but please SIR UPLOAD NEW VIDEO ON CALORIMETERY please explain the grams and how to do conversion in calories and stuff, please sir! Bohot weak ho gaya wo topic

[@abhishekkumarsinha9602]

Sir 23:17 pr ek correction hona hai ..lambda × T = const. λ - ( 2>3>1) And T ( 2

[@ManjuDevi-xt6ii]

Ya bro

[@bhavikprajapati9448]

Thanks for giving us conceptual knowledge

[@me_Ahuja.x]

How much time it takes you to compete one physics ch like this one

[@rishimishrq9384]

sir jab bhi me soachtu hai ki yeh tough but apse pdta hu to easy Ho jaata hai

[@UtsavMistry-CMB]

41:8 bb ki wines,😂

[@prathameshwankhede_2]

23:04 I think it should be lambda 2 > lambda 3 > lambda 1 Right ? 🤔