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 RUclips) 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 ruclips.net/video/zpOK4wjC4h4/видео.html Thermal Properties Of Matter 02 || Thermal Expansion -All Concepts for JEE MAINS/ NEET ruclips.net/video/9pKXcLkIMUw/видео.html Thermal Properties Of Matter 03 || Calorimetry - Compilation of Old Videos || ruclips.net/video/T7Rp1ljKvmY/видео.html Thermal Properties Of Matter 04 || Heat Transfer : Conduction part 1 | Heat Transfer JEE MAINS /NEET ruclips.net/video/auwtdtriyTs/видео.html Thermal Properties Of Matter 05 | Heat Transfer : Conduction part 2 Equivalent Thermal Conductivity ruclips.net/video/WIWA-BYf9JY/видео.html Thermal Properties Of Matter 06 | Heat Transfer : RADIATION : Black Body and Krichoff's Law JEE/NEET ruclips.net/video/e81poLpIzHA/видео.html Thermal Properties Of Matter 07 | Heat Transfer : Radiation 02 | Wiens Law n Stefan's- Boltzmann Law ruclips.net/video/9FnyDK9xQjE/видео.html Thermal Properties Of Matter 08 | Radiation 03 | Newtons Law Of Cooling JEE MAINS/NEET ruclips.net/video/Jdx2LJDRcJ4/видео.html
HLO SIR JO QUESTION AAPNE 31:15 PE DIA HAI USME MAINE Q=MC DELTA T ko equate kar dia tha H*T se vahan se bhi dono case ko compare karke mera ratio same aa raha hai.... To kya vo approach sahi hai ya jaise aapne karaya hai vaise hi karna hai
The voice and video are not in synchronisation. This video cannot be edited on RUclips. Next video , this problem will be fixed. Sorry for the inconvenience.
Sir, aap jaise teacher ki wjh se hum jaise self studying & fees afford na kar paane wale students study kar rhe hain.....Thank you so much sir..plz don't leave this platform.....😓
Don't get demotivated. The best way to test yourself to ensure whether ur preparation is up to jee advanced level is by solving jee advanced problems itself. Don't worry about coaching. Most of their tests and study materials are not at all according to the pattern of jee advanced. Remember JEE ADVANCED IS NOT DIFFICULT ITS DIFFERENT. LASTLY sir's videos are according to jee pattern So you can trust sir. But don't be completely dependent upon him. TRY TO VISUALISE THE SUBJECT. I guarantee you can definitely get a rank under 5000 or may be less than it. My elder brother too couldn't afford coaching but got an AIR 976 in jee advanced 2016.
Timestamps Heat Transfer Introduction - 0:31 Conduction Basic Explanation - 1:10 Variable and Steady State Conduction - 4:57 Steady State Relations - 13:58 Steady State Heat Conduction Formula - 16:28 Thermal Conductivity Constant - 18:54 Heat Current - 21:01 Q1 - 23:35 Q2 - 26:42 Different formulas for Heat Conduction with Differential Formula Explanation - 31:40 Temperature Gradient - 32:52 Analogy with Electricity - 36:44 Class Recap - 42:39 About Next Class - 43:35
This is absolutely true... I'm feeling the same. I think almost all those watching his lectures would be having the same feeling. After watching his vdos I got such a good satisfaction about these thoeries which I never got an idea of from my school.
Now in 2025, chahe PW app waale teachers chem and bio top notch tareeke se padhate hain..but physics ke liye still Alakh sir ke ye waale puraane letures hee dekhne padte hain! right?
Sir u r just great. We r not able to ask u still through it videos only, without even being able to listen us... U r clearing out doubts even before their coming into our mind. U r simply unique coz I have never found a teacher like u.
he uses a external microphone so i guess there is delay when u put together audio and video :).........let delay be dt...... now solve itand reply the time delay ._.
@@boltrahulyt7578 Your reply on my comment reminded me of those days when i started NEET preparation with Alakh pandey sir it was his first ever video I watched
Thank you so much sir for the superb video I always hate physics but now because of you I feel physics so easy to understand and it's the easiest subject
With such a charm he greets us before every lecture ...💕👍 As if he is so much happy and curious to teach...😁🤗 Hats off to this man👏. Never saw anybody as dedicated as uu......💜🌹😘😍
Sir sap jb bhi bolte hai ye pyara sa question,, sach me... Lgta hai ki ab kaun sa question ayega.. 😅😁😁. Thanks sir for all your efforts and hope u to be healthy always
Kya baat hai sir ji.. thandi bahut lag rhi hai!! thank you so much sir... Pehle physics ko option me rkhta Tha lekin jabse aapke videos dekh rha hu tab se physics me grade laane ka man kr rha hai.. ❤️❤️❤️
Sir videos bhot sari bana di itni ki har ek ko dekh bhi nhi sakte or nahi dekhte h to aisa lagata h jaise concept clear nhi h or lagata h kuch n kuch naya hoga
Sir humne ye toh bola ki steady state mai at a particular section... The temperature will remain same.... But after some time that is at steady state won't it try to equate the temperature of whole system.....i.e 100degree then 80 and blah ..
sir i have a doubt , at 29:40 ; you said latent heat formula is applicable at only temperature constant.but here heat is going from 100 degree celcius to 0 degree celcius .then how can we apply the formula Q=ml ..plz clarify my doubt sir..
Sir but at 11:32 jis point pai temp 80 degree celcius hai woo too krna chahiyai naa absorb heat ko wo kyun nhi kerai ga constant too 100 walai ka rehna chahiye
Sir I m from science ,your work is very appreciative, the work you are doing without taking any charges in this expensive world has deeply motivated me ........ Thank you very much HAIL SCIENCE ,HAIL ALAKH SIR.
Guys listen carefully, sir make video first then sir realised in video there is no proper sound then sir watch video and give proper voice I think🤔 Such type dedication is only in alakh sir have🤗 Love U sir, Lots of love from Nepal 🇳🇵♥️
Sir 30:00 p Q mein mc d t +ml nhi aana tha Kya aapne only ml likha h Kyuki sir 100se 0°c and 0°c to 0°c of ice bhi toh jayenga. Please comment anybody or sir please
Bro , q=mc∆t is valid when there's a rise in temp. But when we're talking about the change of phase of substance then we use q=ml. Here we consider it a steady state i.e. no change in temp. wrt time
Arre bhaiyon sir poori shiddat se aur lagan se humare liye video bana rahe hai..... Inko dekh lene ke baad motivational video ki kya zarurat hai. And motivation is something that comes from within. Toh sir ko in sab videos ke badle padhai ki videos banane do😂😂😂😂... Dhanyawaad
Video quality maybe 240p but Alakh sir content quality is 1080p 😍😍 in love with physics just bcoz of me ... Even after 5 years these lectures are so knowledgeful
At 29:45,first water at 100 will change into water at 0 and then it will further change to ice at 0,so how can we apply q=ml. I think we shoild apply m(cΔt+l) instead of ml
sir at 29:33 since ice will not change its temperature firstly and then change to water with change in temperature.so we can write mc*100+ml in place of ml as you wrote.then also answer will be same
Usne ques me ye thodi bola ki puri ice melt ho gyi. Usne to ye bola ki time t me m1 g of ice melt hue hai. To actually ice ki melting stage chal rhi hai. Iss case me latent heat he involve ho sakti hai not the mc∆t ( temp change wali.) Aur ques ko light dimag se socho. Jitna depth me jaoge utna confusion badta hai.
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 )
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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 RUclips)
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
ruclips.net/video/zpOK4wjC4h4/видео.html
Thermal Properties Of Matter 02 || Thermal Expansion -All Concepts for JEE MAINS/ NEET
ruclips.net/video/9pKXcLkIMUw/видео.html
Thermal Properties Of Matter 03 || Calorimetry - Compilation of Old Videos ||
ruclips.net/video/T7Rp1ljKvmY/видео.html
Thermal Properties Of Matter 04 || Heat Transfer : Conduction part 1 | Heat Transfer JEE MAINS /NEET
ruclips.net/video/auwtdtriyTs/видео.html
Thermal Properties Of Matter 05 | Heat Transfer : Conduction part 2 Equivalent Thermal Conductivity
ruclips.net/video/WIWA-BYf9JY/видео.html
Thermal Properties Of Matter 06 | Heat Transfer : RADIATION : Black Body and Krichoff's Law JEE/NEET
ruclips.net/video/e81poLpIzHA/видео.html
Thermal Properties Of Matter 07 | Heat Transfer : Radiation 02 | Wiens Law n Stefan's- Boltzmann Law
ruclips.net/video/9FnyDK9xQjE/видео.html
Thermal Properties Of Matter 08 | Radiation 03 | Newtons Law Of Cooling JEE MAINS/NEET
ruclips.net/video/Jdx2LJDRcJ4/видео.html
HLO SIR JO QUESTION AAPNE 31:15 PE DIA HAI USME MAINE
Q=MC DELTA T ko equate kar dia tha H*T se vahan se bhi dono case ko compare karke mera ratio same aa raha hai.... To kya vo approach sahi hai ya jaise aapne karaya hai vaise hi karna hai
Don deepesh
@@parveshkumar6865 nhi pta h ki ans same aye ga but que mai ice melt ho rhi yani ushki state change ho rhi h
31.00 Mae mera 2:1 aa raha hai sir
Best teacher in India
The voice and video are not in synchronisation. This video cannot be edited on RUclips. Next video , this problem will be fixed. Sorry for the inconvenience.
Koi bat nahin sir hota hai machines m sath its ok
sir ji next video kaal aai ga ya aaj
Sir rod wale ques me q=ml use kia but waha to temperature bhi change ho rha hai q=mc◇t kyu nhi hoga?
Sir meri bhi bat par thoda dhyan dijiye sir please
Koi baat nhi sir ji ....hm to ab family jaise hai
Sir, aap jaise teacher ki wjh se hum jaise self studying & fees afford na kar paane wale students study kar rhe hain.....Thank you so much sir..plz don't leave this platform.....😓
Sahi baat hai yaaar
Don't get demotivated. The best way to test yourself to ensure whether ur preparation is up to jee advanced level is by solving jee advanced problems itself.
Don't worry about coaching. Most of their tests and study materials are not at all according to the pattern of jee advanced. Remember JEE ADVANCED IS NOT DIFFICULT ITS DIFFERENT.
LASTLY sir's videos are according to jee pattern So you can trust sir. But don't be completely dependent upon him. TRY TO VISUALISE THE SUBJECT. I guarantee you can definitely get a rank under 5000 or may be less than it. My elder brother too couldn't afford coaching but got an AIR 976 in jee advanced 2016.
@@coolguy8234 I'm preparing for aiims Bhai..
And thanx
Bhai mai bhi fiitjee mai free me padh raha hun and thats true
Aisa kuch nhi h jo fees afford kr skte h vo bhe sirf inhe ke help se study kr rhe h
Timestamps
Heat Transfer Introduction - 0:31
Conduction Basic Explanation - 1:10
Variable and Steady State Conduction - 4:57
Steady State Relations - 13:58
Steady State Heat Conduction Formula - 16:28
Thermal Conductivity Constant - 18:54
Heat Current - 21:01
Q1 - 23:35
Q2 - 26:42
Different formulas for Heat Conduction with Differential Formula Explanation - 31:40
Temperature Gradient - 32:52
Analogy with Electricity - 36:44
Class Recap - 42:39
About Next Class - 43:35
Thanks
Thanks
Yeh ek dubbed movie hai....... "Pandey the Heatman"😂😂😂....lots of love sir❤❤
hahahah
nice one 😂
😁
🤣🤣🤣
🤣
Sir you are a legend.I couldn’t understand what my college lecturers taught me for 2 years now because of u I’m loving physics
Same situation bro
This is absolutely true... I'm feeling the same. I think almost all those watching his lectures would be having the same feeling. After watching his vdos I got such a good satisfaction about these thoeries which I never got an idea of from my school.
@@rajasreemenon8694
Me too, I am under intense pressure on this subject in my school
This talent comes to some teachers only.
Same thing here sir
Now in 2025, chahe PW app waale teachers chem and bio top notch tareeke se padhate hain..but physics ke liye still Alakh sir ke ye waale puraane letures hee dekhne padte hain! right?
Not only +2 ,jee and neet students but also bsc students are getting benefits from your lectures 😃😃 thank u sir🎯
+1 also
@@inspiroygamer6839 YEAH YOU ARE RIGHT INSPIROY GG
Studying frm uh gives me another level of happiness nd confidence ❤️ thank uh so much sir 😊
Uh
🔥
Sir u r just great. We r not able to ask u still through it videos only, without even being able to listen us... U r clearing out doubts even before their coming into our mind. U r simply unique coz I have never found a teacher like u.
Sir bht logo ke physics dekhe ..IIT and NIT teachers Ke but aapke physics .... 😀😀😀😀😀 Op 👍😊😍❤️ hai ...abhi bhe aapse he padhna h ...
At this time with best teachers with technologies i m watching this video... power of alakh sir
I am viewing it after exactly 2 years
Today is 3rd December 2020
and this video was uploaded on 3rd December 2018
@@sanjeetpatel515 🎉 happy bday 🎉❤️
@@sanjeetpatel515 achha lol
I an watching it on 4 jan 2021
I am in 5 January 2021
13 jan 2021
Thanks sir, I enjoy physics just because of you and your teaching style.
No daught
@@neetdiaries123 Bhai vo 'DOUBT' hota hai......
@@adityatrivedi7762 😂
Clear ho gya bhai exam
Sahii baat bola bhaii mujha pee class 11 th mee physics nahi ata tha likhin ab sir ka vajesee abb kuch too ana laga Hain. Thanks sir 🙏
physics wallah -- the voice over artist
he uses a external microphone so i guess there is delay when u put together audio and video :).........let delay be dt...... now solve itand reply the time delay ._.
@@dungeonmaster7607 Woah you the Physics man homie °_°
Pls spread sirs channel as much as possible
subscribers of physics walla are increasing very fast,day befor yesterday i saw 593k subscribers and now it showing 596k..its great
Check now lol
😂@@Jajajavivi
when you speak at speed of light, voice comes 2s before actual speaking
Shi bola
Yup bro
Actually more than the speed of light
pewpewpewpewdiepie
U are a physics student!
I m reallly thankfuuullll to you....
Ye chptr class me kch smjh nae aayya.....nd i waj so much depresssed but u helpd me a lott..💞💕☝☝
@@ayushsaini3281 chup
@Love Aulakh Tu chup gadhi
ruclips.net/video/KPXw6sWdN98/видео.html
What a lecture just loved it💞💞.I don't know who are those 252 science students who can dislike this lecture.
They're school teachers 😂😂
@@boltrahulyt7578 Your reply on my comment reminded me of those days when i started NEET preparation with Alakh pandey sir it was his first ever video I watched
Have u cracked neet bro?
@@boltrahulyt7578 yes
@@dr.unknown8856where are tou now
Thank you so much sir for the superb video
I always hate physics but now because of you I feel physics so easy to understand and it's the easiest subject
Love you sir yours method of teaching is outstanding
Keep smile forever
Appreciate your effort
Again lol
Yessssssssssssssssssdsss!!!!I am so happy that I understand what u needs that was analogy of heat and electricity.thanx sir lots of love....😃😃😃😃😃😃😃
Grda,dhansu ,bole toh jhkkaasss ....kya pdhate h sir aap ...great .... physics easy kr diye apne toh💥💥💥💥
Thanks for explaining variable and steady state nobody explained it so beautifully.
this was actually required
it clears my basic confusion
Sundar sa nanha sa pyara sa conductor 16:45 😁😁😁❤❤❤❤
U mentioned wrong time 🤨😔😕🤨
@@charith6670 Yes correct time is 16:35
Sir bhagwan apko har kushi da
Ap hum bachoo ka liya itna kar raha Ho #thank-you so much Sir 😘😘😘😘😘😘😘😘😘😘
With such a charm he greets us before every lecture ...💕👍
As if he is so much happy and curious to teach...😁🤗
Hats off to this man👏. Never saw anybody as dedicated as uu......💜🌹😘😍
Neat and clean concept of HEAT
Kya analogy di hai sir.... matlab kya compare Kiya hai heat and electricity ko... mind blowing 🤯🤯
Thank you so much sir ! 🙏❤️❤️❤️❤️
32:56 concept of temperature gradient
Thank You SIr!!
I think and I believe that sir Alakh Pandey's teaching is the best method of teaching
Par mandir jarur banega
@@gavyansh3888 just focus on your studies and everybody are equal
Sir you are a legent of physics
Legend ✖️legent✔️😂
His meaning
Le gentleman ... Hehe
Thanks for helping all Students 🙏🙏🙏
You are the Greatest Teacher 🤓🤓
👏👏👏👏
All thanks to you for my 90 percentile in jee mains
@Rudraksha Dwivedi ni yaar actually you can do it too
@Rudraksha Dwivedi I spoke about physics ...don't consider maths and chem
@Rudraksha Dwivedi 90 percentile easy hota hai bas 150+ lana padta hai
@@dhruvpawar3733 Can u appreciate the fucking effort.
Good work bro
Aj Maine sakshat dronacharay ko dekha.........
...alakh pandey sir💜💜💜💓
I was searching for this kind of teaching, thank you so much sir
Sir you are the amazing teacher of all
Sir sap jb bhi bolte hai ye pyara sa question,, sach me... Lgta hai ki ab kaun sa question ayega.. 😅😁😁.
Thanks sir for all your efforts and hope u to be healthy always
Kya baat hai sir ji.. thandi bahut lag rhi hai!!
thank you so much sir... Pehle physics ko option me rkhta Tha lekin jabse aapke videos dekh rha hu tab se physics me grade laane ka man kr rha hai.. ❤️❤️❤️
Tu sir k har video main comment karta hai Bhai
@@tanmayamishra1980 haan bhai
Aap bolo to ab se nhi karunga
Keep it up bro
Sir aap ki help se me notes bnan thy hu aur uska use me exam time karta hu washroom me .
Thanku sir🤗🤗🤗🤗
----by
True backbencher
😂
Thank you sir.it is because of your efforts that physics has become an interesting subject for us.
Sir aapko ye concept aur ye analogy pyaari lagti hai par mujhe to kuchh aur hi pyari lagti hai🥰🥰
Who else trying to complete left volume 2 of physics for final exams before feb 😛😂😂😂😂
Very true
Same here
Same here 😂
same here bro
ye topic to syllabus me h hi nahi😆
Sir plzzz thoda jldi jldi daliye video plzz sir mains ka paper ane vala hai ...apne se kar rhe hai mgar aap ke video se bhut help milti hai
Tomorrow is my paper and I am doing it now at 2 x speed
Your videos are really very helpful sir. Thank you
Purane sir is back😊😊😊😊😊😊😊
Next level clarity 😊
Aapko hamari v umar lg jaye sir g you are great..... teacher
congratulation dear sir for 4 million subscriber
Nice sir Mere ko to achhe se samaj me a gya pura thanku
Great video thank you and 600k is coming
Sir videos bhot sari bana di itni ki har ek ko dekh bhi nhi sakte or nahi dekhte h to aisa lagata h jaise concept clear nhi h or lagata h kuch n kuch naya hoga
I like ur all videos before watching . Thank you sir for such awesome explanation .
Thanks a lot sir, Alakh sir aap sach main sab sa alakh ho 💙
Sir humne ye toh bola ki steady state mai at a particular section... The temperature will remain same.... But after some time that is at steady state won't it try to equate the temperature of whole system.....i.e 100degree then 80 and blah ..
I think this video is too good 👌🏻👌🏻👌🏻👌🏻
44:38 Padai karte rahe all the very best .....👍
Ha chal Apne bap ko mat sikha
very thank u sir school me ek akshar bhi nhi smjh aaya ye topic....but now it is very good .....sirrrrr ur awesome
Sir mene aaj aapse ye wala lecture bhi complete kar liya 👍
very good lectures given by alakh sir
U makes our study soooooo easy no word to judge u ur great
In vidoes ki baat hi alag h bhai 😇😇😇😇😇😇😇😇😇😇 m you tube pr chl rhi series chhodkar ye vidoes dekh rha hu
I know everyone smiled when he said analogy
Thank you sir .your lectures are so good. I am studying in class 11.
Physics ke BADSHA Chemistry ke Saradar mahano ke mahan Alain sir Ko did khadim ka adap Salam
😂😂🤣🤣
Allah aapko isska behtr bdla dee thankx a lot
sir i have a doubt , at 29:40 ; you said latent heat formula is applicable at only temperature constant.but here heat is going from 100 degree celcius to 0 degree celcius .then how can we apply the formula Q=ml ..plz clarify my doubt sir..
That's Because there is no change of temp. Of ice. Ice is melting ,not water is converting into ice.
@@monika_thakur567 thank u.. I had the same doubt
@@monika_thakur567 Jab tak both ice and compound mention na ho tab tak ML formula hin apply karenge na
this is because the other end is maintained at 0 degree celcius due to steady state
Same doubt😕
Bhut achhe se samjate ho sir ji very nice aapka samjaya pura samj me aa jata h thank you soo mach sir
And thankyou for this video
Sir you are very close to 1 million.... congratulations...😊😊
sir your videos are so interesting so that i fully concentrate never give up this channal thanks you sir.
Sir you are my favourite physisc teacher
Physics ki spelling toh thik likhle 😂😂😂
Sir but at 11:32 jis point pai temp 80 degree celcius hai woo too krna chahiyai naa absorb heat ko wo kyun nhi kerai ga constant too 100 walai ka rehna chahiye
Sir plzzz make a preparation video of NEET..as you made foe IIT & JEE...plz sir its a request...and very very thanks for this awesome video...🙏🙏🙏🙏
ruclips.net/video/b8cEom_OTCk/видео.html
Yes sir please make at least one video
Yes sir please made
Are yaar if u can solve jee questions then neet will be easy
You're a wonderful teacher Alakh sir
13:00
sir then why in steady state the temprature of the back molecules not get more as why they not getting all to 100 C
Every cross sec area maintains a def temp after provided a given heat to it... Not all cross sec area can have the same temp...
Sir app bhut help krte ho miss u sir💓💓💓
Sir I m from science ,your work is very appreciative, the work you are doing without taking any charges in this expensive world has deeply motivated me ........ Thank you very much
HAIL SCIENCE ,HAIL ALAKH SIR.
chal bhag ch****a
Guys listen carefully, sir make video first then sir realised in video there is no proper sound then sir watch video and give proper voice I think🤔
Such type dedication is only in alakh sir have🤗
Love U sir, Lots of love from Nepal 🇳🇵♥️
hein nepal?
JO ALAKH PANDEY SIR KE SABHI LECTURES DEKHTE HE HIT LIKE HERE👇🏻👇🏻
bhai tu har lecture mei yhi cmment krte ho chlo mei like krta hu
Tu yaar like kr baate mat kar bro
Aur padhaaime dhyan de thoda
@@jalppatel5751 tui pehle de d e
Chhotu zara chapal geeli karke laio!
Nice explanation my world's best sir ❤❤❤❤❤❤
Yes sir ye humara khubsurat saa channel physics wallah❤️❤️❤️❤️❤️❤️
Sir 30:00 p Q mein mc d t +ml nhi aana tha Kya aapne only ml likha h
Kyuki sir 100se 0°c and 0°c to 0°c of ice bhi toh jayenga. Please comment anybody or sir please
Yes I also have the same doubt
Please sir or anyone tell us
Nahi because 100 c water sirf conductor ko heat kr rha h and conductor ki heat (q) ice ko melt kr rhi h we know q=mL(m=mass of ice L=Latent heat)
Yes bro
Bro , q=mc∆t is valid when there's a rise in temp. But when we're talking about the change of phase of substance then we use q=ml.
Here we consider it a steady state i.e. no change in temp. wrt time
Sir in 25:15 ar of cube will be 6a^2. You have taken only area of 1 square. In cube there are 6 squares
because heat flows through only only one side of cube.
@@sriharimunnuri4337 Bhai Mari jee ho gai. Thanks for reply by the way.
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Watch this comment also plzz
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At 29:45,first water at 100 will change into water at 0 and then it will further change to ice at 0,so how can we apply q=ml.
I think we shoild apply m(cΔt+l) instead of ml
Water is not flowing , it's just given to tell you the temperatures at two ends
@@mohammedmodak9832 bro will u explain vividly please?
Ice is just melted to water. No change in temperature of water.
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sir at 29:33 since ice will not change its temperature firstly and then change to water with change in temperature.so we can write mc*100+ml in place of ml as you wrote.then also answer will be same
Would u elaborate it.. I didn't understood what u said
Usne ques me ye thodi bola ki puri ice melt ho gyi. Usne to ye bola ki time t me m1 g of ice melt hue hai. To actually ice ki melting stage chal rhi hai. Iss case me latent heat he involve ho sakti hai not the mc∆t ( temp change wali.) Aur ques ko light dimag se socho. Jitna depth me jaoge utna confusion badta hai.