Class 11 Physics chapter 8 || Gravitation 01 | Introduction : Law Of Gravitation JEE MAINS / NEET

[@PhysicsWallah]

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. Class 11 Physics chapter 8 || Gravitation 02 || GRAVITATIONAL FIELD || IIT JEE MAINS / NEET || kzbin.info/www/bejne/o6CzqJKBe5aFpbc 11 chap 8 | Gravitation 03 | Gravitational Field due to Solid Sphere + Hollow Sphere JEE MAINS /NEET kzbin.info/www/bejne/infZlqp4qNeUf7s 11 chap 8 | Gravitation 04 |Acceleration due to gravity g and Variation in g gravity JEE MAINS/NEET kzbin.info/www/bejne/jWWnipx-h9yfgsk 11 chap 8 | Gravitation 05 | Gravitation Potential : Introduction with Derivation IIT JEE MAINS/NEET kzbin.info/www/bejne/e32YgoWElMesas0 11 chap 8 | Gravitation 06 | Relation between Gravitational Field and Potential JEE MAINS / NEET | kzbin.info/www/bejne/nHKolZWtm9x5g6M 11 chap 8 | Gravitation 07 | Gravitation potential due to Hollow and Solid Sphere IIT JEE MAINS/NEET kzbin.info/www/bejne/g5y7f2Ovpq-FfK8 11 chap 8 |Gravitation 08 | Gravitational Potential Energy IIT JEE MAINS/NEET | kzbin.info/www/bejne/bYWuhpSknL-nhdU 11 chap 8 | Gravitation 09 | Escape Velocity -Derivation , Concept , Numerical IIT JEE MAINS /NEET kzbin.info/www/bejne/baSpgHmIoNV7aKM 11 chap 8 || Gravitation 10 || Motion Of Satellites - Orbital Velocity IIT JEE MAINS /NEET || kzbin.info/www/bejne/gHWaY42Je8tjpKc 11 chap 8 | Gravitation 11 || GeoStationary Satellites Geosynchronous Satellites IIT JEE MAINS/NEET kzbin.info/www/bejne/mIWtcmWuiZh3rbs 11 chap 8 || Gravitation 12 || Kepler's Laws of Planetary Motion IIT JEE MAINS / NEET || kzbin.info/www/bejne/pJ3bdqt7dtagl68

[@wilson26836]

Plz make video on posilies law

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Sir ads dhyaan kharab kr de rhi hai

[@aakashyadav5929]

@@AB-lt8my aukat me rah sir ko kuch mat bol varna .....

[@PawanSingh-sc5qy]

agar khud nhi pdha skte toh dusro ko mat bolo

[@AbhishekKumar-iv7zo]

@@AB-lt8my f**K off

[@PhysicsWallah]

Up Next : Gravitational 02 : Gravitational Field : under processing Coming Soon : Chemical Equlibrium 05 :Le Chatelier Principle Coming Soon : Rotational Motion 16 : Rolling Series 04 : Forces in Pure Rolling

[@payalgaikwad4885]

sir u forgot to pin this comment

[@siffatjotsingh7229]

Sir Thermodynamics kitna rehta hai ??

[@smitajain3716]

Sir aapne kaha tha ki next video will be on Chemical Equilibrium

[@sakshamranjan2752]

Sir if you don't mind can you provide me your WhatsApp no. Pls. sir actually I want to contact you pls.sir!!! By the way sir my name is Sakaham!!

[@krishnatiwari8653]

Osm

[@Roshankumar-kd4uw]

Legends still watch physics wallah old lectures😎

[@muskanmehra23]

We are legends🤘🤘

[@hajrasumbul1659]

Yeah! 🌚

[@ankitakar8180]

Yesss

[@doctor-devil.]

His lectures is not old

[@friendlycreeper1045]

Correct. I like the old approach of Physics Wallah not the new one.

[@mohammadmemon2293]

Its 2024 and yes we are still seeing this video and learning from it !

[@imperialhitman6047]

is it enough for advanced level

[@ni4bhay]

@@imperialhitman6047 yes

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Bhayya Bhad me Javo

[@vatsal98733]

true

[@AbhishekKumarSingh-lx7dk]

This man will create a milestone in coming year. Love you sir ❤️❤️❤️

[@anuragsharma8134]

he was already create milestone☺☺

[@AbhishekKumarSingh-lx7dk]

@@anuragsharma8134 I know it broo

[@adarsh5997]

Alakh sir's old white board videos are gems even in 2023 and will also be after 50 years ❤️❤️ huge respect

[@vivinadityanarayn1260]

yes bro

[@prashantrajput1977]

You are correct bro

[@prashantrajput1977]

❤️❤️❤️❤️❤️❤️❤️💘💝💖💖💝💝💘💖💘

[@mdkirasoi2804]

yes bro , but 2023 abhi start kaha hua h , i think you are talking about certainty

[@pragyapranjal652]

Are u here for neet 2023 ?

[@pushpanjali30]

Teachers in classroom- samajh aa gaya Alakh sir - feel aagaya 😁

[@piyushyadav3238]

😀😀

[@studiesstudent3543]

jeetu bhiaya irl😍😌

[@mudit1110]

Feel toh vo deti thi

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@@mudit1110 😂😂

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😂😂😂Bhai itna sach nhi bolna tha😮​@@mudit1110

[@AbhishekKumar-yw7dp]

These videos are taught in more easier way than offline coachings.

[@jigneshvariya1940]

Sir, your hard work is useful to us even today and will be useful even 50 years from now...lots of respect.❤❤

[@star-cm2ei]

This way of teaching will always remain gold. EDIT : Made it to IIT, thankful to sir for helping me clear concepts and theory

[@AllInOne-on2vz]

Diamond bro

[@Studdyyex]

Yes

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Rubby bro

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Emerald bro

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wow congo

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My life^s luckiest moment is that when I found your channel sir.

[@aafreenjaan6974]

Kya muje koi bataye ga yeh jo M1+M2 tha wo tou 12 ban jayega na...muje koi smja sakta hai...

[@bhaveshsharma2058]

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@@bhaveshsharma2058 🙄🙄🙄batao naa...

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Bhai yeh sab bolte hai

[@aafreenjaan6974]

@@mydevilisme8386 can u plzz help me in solving this equation..

[@AshutoshKumar-yadav]

Ye kon kon 2024 -2025 mae dekh Raha hai 👇👇

[@Bittu-sah34]

Ha..😂

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Me

[@Saam-vp1xl]

Ha bhai bolo kya kam hain

[@SunitaHalaki]

Me...👍🏻

[@payeldutta2800]

me.....

[@SeriousStudent603]

Integral dF =Integral dFsintheta F=Integral Gmdm sintheta /R^2 F=Gm/R^2 Integral dm sintheta Since it is ring we use mass per unit length to substitute in the place of dm. M/pi R =dm/R dtheta dm=dtheta M/pi F=Gm/R^2 Integral dtheta Msintheta/pi F= GmM/R^2 pi Integral sintheta dtheta F= (GmM/R^2 pi )[-costheta] (theta = 0 to pi) F= GmM/R^2 pi (-(-1-1)) F=2GmM/R^2 pi F =2GmM/R^2 pi (j)

[@kanishkayadav1736]

Thanks!

[@abdoonyt9049]

Salute to you

[@rayansh117]

​@@abdoonyt9049👍

[@Cricket_Lover3663]

copy paste 💀

[@shenxot]

why n how did "sintheta dtheta" become "[-costhetha]" ? :(

[@akshatjain2277]

Who is here in December 2020😜😜 . . Edit ; December😋 . . 4 million😜😜 Subscribers ❣❣ Congrats Sir ji 💥💥😊😊 . . 1 TEACHER = 40 LAKH STUDENTS 🤪🤪😲😲

[@srayadav1450]

Me

[@akshatjain2277]

@@srayadav1450 😅😅

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Me bro

[@abhisheklakhotra9776]

I am starting now

[@Saad21]

Maine aaj shuru kiya

[@vishnubajpai5778]

Mr Alakh Pandey my daughter is preparing for neet, went through your lectures. It is great yeoman service you are providing to student. God bless you and your team lectures on physics

[@appufan716]

Sir does his leutures will help in neet preparation I m doing self study for neet n I m totally confused so can I follow him can u pls help me out by replying to my msg 🥺🥺🥺🥺🥺

[@vishnubajpai5778]

@@appufan716 surely mr Alakh Pandey teaches physics I have never seen any teacher like him in my life.Definitely you should follow his lectures it will take you long way.

[@appufan716]

@@vishnubajpai5778 tqsm sir for ur valuable reply ✨☺️stay safe n stay happy sir .....

[@zareefuddinahmed8641]

Human spelling is wrong.

[@kunj423]

🙏

[@Robingamer0.1]

legends of new 11th still likes to watch old gold wali video by physics wallah

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Yes bro ❤❤❤

[@chhavigoswami9851]

1:05:18 I was like " Aaj to pehli baar me hi sahii answer lg gya" Sir at 1:05:20 "ruko zraa sabar kro " Ekdum se waqt badal diya.. Jazbaat badal diye sir 😂😂

[@IG_Ninjaa_3]

Mai toh shock ho gya kuch der ke liye😂😦

[@PiyushBhardwaj8053]

M soch hi rhi thi ki mera kaise shi ho sakta h🥺😅

[@SeriousStudent603]

in this Question @ 45:45 the bodies are not point masses. then how did sir take r from COM? shouldn't he have used dm?

[@sanataniofficialhindu]

@@SeriousStudent603 aree hum center to center kr difference ko r kehtr h jab mass uniformly distributed hota h

[@humorwaves]

Me too😅😅😅

[@akshitayadav9858]

My all-time favourite singer 😂❤️

[@uzaifqureshi3291]

And also sing his song 44:30 with 0.25x 😂👍

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Toh baki singers kya job chod de... 😂🤣

[@shambhai2563]

🤣🤣🤣🧡🤍💚

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No

[@shashankkumbar1630]

😀😂😊

[@henajabeen5608]

Timestamps Newton's Law of Gravitation - 4:22 Q1 - 16:05 Q2 - 22:45 Q3 - 43:00 Principle of Superposition of Force - 53:08 Example Qn - 56:24 Special Question about Force between an Object and Point Mass - 1:03:10 Answer of this Special question is [-GmM(2a+L)] /[ aL(a+L)] Half Ring Qn - 1:19:10 Answer of Half Ring Qn is (d)

[@studystorebd8562]

Can you please solve that half ring question?

[@nishthagupta1139]

thanks dude!

[@Its_Ari24]

1:20:13 Ans -->d dF = GmMd@/(pi)R^2 sin@ integrate it from 0 ---> (pi) F = 2GmM/(pi)R^2

[@jyotibarnwal1368]

How?

[@aakritisharma7561]

24:48 reason why I prefer watching these old lectures 😂. Entertainment bhi ho jaata hai aur padhai bhi 🙂🙂🙂.

[@studystud3617]

Ma bhii

[@gamerfox1075]

bhai mere purane chapter nhi hue so can I start from here

[@shailygupta684]

@@gamerfox1075 I think you are required to know some mechanics to start gravitation but if you know some basic concepts then I think you can

[@sneaky_2]

@@gamerfox1075 yesss bro you can start 🤗♥️

[@nityapatel5372]

@@gamerfox1075 you need to learn force kinematics and work power energy and centre of mass to learn gravity completely

[@saniyalonare8473]

Any one preparing for neet 2024 .. I am very thankful to sir that I got to understand the physics very easy from his explanation.

[@Dr.Strange0001]

I also,,🤗🤗

[@kushagrasrivastava6501]

I also

[@BeingKhushiRaj]

Also

[@tamarafatimadanish3918]

Same here.. 😁

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I also

[@theorthopat1346]

Dimensional formula is [ M-¹L³T-²]🙏

[@Studdyyex]

Yes

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Tq

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yep

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Jo mil sake asani se ...,,use pane ki kwaish hai hi kise .. 📒📚 jid to use pane ki hai .. Jo mukkadar me likha hi na ho 🎖️🎖️

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Very nice 👌👌👌

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Sahi Kaha Yaar ......... 💓 touching

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bilkul

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100% corrrect

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Kon Kon physcis ka tution nahi padata bass physics wallaha sir se padata😍😍😍😍😍😍 hit like

[@NatUreEartH30]

Me

[@NatUreEartH30]

Suru me padhi thi lakin unit test me marks achhe nhi aaye to tution chhod di

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Me too

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Maine bhi yrr

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Me bro

[@sanjayroy2462]

You are a great energetic teacher I have seen ever. Your voice ' Hi bachho....' is very loving. After all you are a good physics teacher.

[@nikhil25013]

hello * bcho not hi bcho 🤣🤣

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@@nikhil25013 pagal hai vo 🤣🤣🤣 Sahi se suna nahi hai isne lagata hai 🤣

[@crystalrockz7485]

Hi bacho nahi hello bacho hai

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Alakh Sir knows the correct procedure of teaching. 🙏✨

[@harshitsingh3644]

यह jee mains ka एक scoreing topick है गुरुत्वाकर्षण की series शुरू करने के लिए बहुत बहुत धन्यवाद गुरू जी! 🙏🙏 जन्मदिन की अनन्त शुभकामनाएँ गुरु जी! आप जिये हज़ारो साल ! 🙏🙏🙏

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Itni pure hindi

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Bahut padte ho

[@vijaysharmatoharisharnam356]

Correct

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Apanko aadhi Hindi aati nahi aur tu double Hindi me blo rela hai

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RIP English... ☠️⚰️

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Dilbar dilbar !!😂 anyone frustrated from institute teacher and then relieved and confident by learning from sir in 2019

[@s.rscienceacademy2080]

Me

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Me

[@rushiljariwala]

😂😂😂😂😂😂😂😂😂😂😂

[@rohitvermarv007]

The technic behind teaching is very appreciable thanks for great knowledge sir .

[@anujdutta-gm2vf]

Now it's 2023 but I still searching for old lectures of Alakh Pandey Sir❤❤❤

[@tabassumshaikh7377]

Hy plz reply is this lectures sufficient for jee mains and advance??

[@aritra__chowdhury]

​@@tabassumshaikh7377Not sufficient for JEE ADVANCED

[@satyaeditz777]

​@@tabassumshaikh7377yes..... watch the full playlist...then I hope koi bhi question nhi atkega

[@thetechnocuber5318]

One of the most helpful set of lectures.... Really, old is gold...

[@shubhrasaha7589]

Sir is great. He will be remembered years by years. His teachings are immortal

[@anshitaartandcrafts9649]

In 2022 I am seeing this video and I am thankful to alakh sir we all are proud of you sir you are the best teacher........................................ Sir, In my school I am not able to understand what school teacher explained us but when you are here no fear of understanding concept .....

[@chrrchrry7431]

anybody starting this chapter in 2020

[@magnete2837]

Before exam😂

[@shahnazmukhtiar9921]

Yah me😂😂

[@tanishprabhavat7212]

Yes.... revision chal raha h

[@sabnamkhan4572]

Haan

[@saumyaraj3689]

Yea , I m in tension cuz abhi pura ek book baki h.

[@meghagupta556]

45:24 The happiness when ur answer get correct ❤️

[@NaamGyaTelLene]

Hey listen , I don't why I m saying this hare but , I love physics but can't able to do their questions ❓ and also I m not give time to this subject ... I don't even know how my day turns into night , within couple of moments 😭😭😭😭

[@gamingwithprashya5648]

@@NaamGyaTelLene mujhe bhi same prblm hai bro Idk what I have to do

[@rmslostearpods]

@@NaamGyaTelLene guys look i am in 12th right now and i felt the same problem in my 11th, Try changing your source of question solving and always solve basic ques first and don't loose the confidence it took me 2 years to gain it back or notes revise karne k baad hi ques solve karna it helps

[@AshishKhetwal]

@@NaamGyaTelLene bro this is happening with everyone right now so don't panic

[@NaamGyaTelLene]

@@rmslostearpods yes brother you are right but I don't have time to study I want to be a millionaire ✅ I am giving my most of the time to get things which will teach me how to be, and I had put the deadline of being rich 🥲🥲💀

[@bishwayanpurkayastha8849]

Solution to last question- For elementary mass dm, (here, theta = @) dm = Mdx/πR = Md@/π (dx=Rd@) Now, dF = Gmdm/R^2 = GmMd@/πR^2 But net force will be only the y component (since, x component gets cancelled by the symmetric half) So, F net = dFsin@ Put df=GmMd@/πR^2 Fnet = GmMsin@d@/πR^2 Now, integrate from 0 to π , answer will be option (D)

[@Aakash_Mehra]

thanks buro

[@MelonBrick]

@@aniketnarwal7067 I don’t think It’s linked pr basics pta hone chahiye last all chaps ke

[@MelonBrick]

@@aniketnarwal7067 try watching first few mins… you’ll get to know if you’ll Be able to do it or not

[@kunwarparth]

thanks buro

[@KhushiYadav-gh8oh]

Sir aapke lectures itne engaging hote hai ki hum like karna bhul jaate hai😆❤

[@Homiesapien69]

Facts

[@jatinsihag-ec5sp]

😂😂❤❤

[@sangel5891]

Still giving attendance to old lectures U are my physics rescuer Thanku sir 🙏

[@saransh-_patel_-]

Yes

[@zairahzairah-p5l]

2024

[@keyursabnis5]

Did anyone notice the escape velocity equation on Sir’s T-shirt?!🤩😂

[@diyabiswas9634]

i did

[@amandcmishra]

Ya

[@sharvaripatil2181]

Ya

[@oishibasu2709]

I did

[@syedzainulabedin2430]

Me

[@spsharma2202]

best thing about your videos is that they are fully conceptual and that's what physics demands.💎

[@vikrambharadwaj657]

I love Alakh sir's physics and chemistry classes🧡❤💛 thank you Alakh sir!🙏🙏🙏

[@ABHISHEKKUMAR-ii5nk]

HAPPY BIRTHDAY SIR..... U R THE BEST.. ❤️❤️🎈🎈

[@intensegamer-kumar3385]

Aaj sir Ka birthday haii.

[@ABHISHEKKUMAR-ii5nk]

@@intensegamer-kumar3385 Yep...

[@circuitally__yours]

happy birthday sir🍰🎂

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Happy birthday sir

[@alifiya02feb]

@@ABHISHEKKUMAR-kc9cw happy birthday

[@derekjordan457]

My Parents usually do suspicious reaction when ever I study through PWsir because of his Inter video Songs 😀😀😀😀😀🤓🤓🤓🤓😍

[@simplinnocent7180]

Haha same here

[@sushilkrsingh4600]

Same here

[@PJCUBES]

Ha bro mera bhi same he😁

[@pranav3339]

English😼

[@arjunnagpal3537]

@DNA yes bro mne bhi rat ko ek din video dekh raha tha papa a k puchhne lge ye phurr kuchuk zurrr ye kya kar rae hain sir Mne bola feel le rahe h question ki us din k nad se headdphones k sath hi dekhta hu😂😂😂😂😂

[@WhiteZuka]

He Is Like Jeetu Bhaiyya

[@srijitpatil209]

No he is better than Jitu bhaiyya

[@Kya_sahi]

There is no comparison of him and jeetu bhaiya but yeah we can say that they both are legends!!

[@LegendGuy5060]

41:00 sir, can we do it with v = u + at? because mera answer aagaya. (here i took initial as 0 and finding the final velocity.) eq1=> [v = u + at] 2 = 0 + at at = 2 a = 2/t -------1 eq 2=> again [v = u + at] v = 0 + a't a' = v/t ---------2 now for both particle [f = ma] 1 -------> F = 10 x 2/t = 20/t (here 10 is mass) 2 -------->F = 2 x v/t = 2v/t (here 2 is mass) now we know that [F12 = -F21] therefore, 20/t = -2v/t t -t gets cancelled. 20 = -2v -v = 10 v= -10 hence option b is correct.

[@rittikasamal9300]

Sahi hai yaar

[@rittikasamal9300]

If taking COM is invalid in this case then why we solved the question no.3 with the concept of COM........ PLEASE if anyone has ans then make a reply to me......

[@anandsrivastava6305]

​@@rittikasamal9300Hamne usko point mass mann liya

[@Bhawana23]

last ques ans is (2/pi)GMm/Rsquare i.e. Option (D)....Thank u so much sir 🙏💗💗💖

[@darkhorse640]

@@InspoShreyo mass of element dm of ring is M/piR(circumference of half circle) *lenth of small element now length of small element = radius*small angle d(theta) now force on m due to small element dm on ring = mMd(theta)/πR^2 now this is force F on m due to small element dm net force is Fsin(theta) if you integrate it to from 0 to π..you will get the answer.

[@rajeshkumarjena2309]

@@darkhorse640 M m. d(theta)/ πr² Don't understand Again tell me

[@kaushikpradhan25]

@@rajeshkumarjena2309 thats actually gravitational force acting on m due to dM of ring which is, F=Gm1m2/r^2 and here this F is =GmdM/R^2 where we found dM to be equals to Mdθ/π (dM=M/πR × Rdθ (as dL=Rdθ) so now F=GmMdθ/πR^2

[@rishavjain5087]

I got the same.... hoping that to be the right one...!

[@srijitpatil209]

I have got the same answer But for integration I don't understand what will be limits Can you please tell me, if you have solved it?

[@AlleniteRahul]

I am from samyak Allen kota Pre Medico Bt aap jese concept nhi dekhe jo sidha mind me set ho jaye U r teching very nice sirji

[@aceofthebrothelstreet6720]

Talwandi ke paas kya ,

[@jaischauhan4208]

Thanks sir ji for this awesome video. My answer to homework question is option d.

[@priyadarshanihada2682]

@Aman Kirola bhai allen mai jane wale students agar youtube se padhe tou its not paisa waste bcoz allen mai ek time pr bohot sara stuff manage karna padta hai or isliye kabhi kabhi concepts reh jate hain ,ek baar allen jakr dekh tab ye stupid comment karna

[@moviesworld2519]

Ans ka javab da

[@shwetasingh3231]

Me too from Allen Kota samyak but I like your concept

[@tiyasha1736]

I am a 12th student ... At first Alakh sir told that if your gravitational force is not clear then you can't understand electrostatic ... Then I came here to clear my weakness and now sir told .... "Agar rotational motion nhi padhe ho to Kya ghas chiroge" ....😖😖😖

[@nityapatel5372]

Lol but all are interconnected 😅😂

[@alpeshshah2472]

Samd😢😢

[@RishavRaj-l6v]

Where are you now dost

[@bhavishyabirhman5609]

at 40:43 the velocity of 2 kg mass should have a negative sign which will make option c correct

[@mujeebshaikh5389]

Exactly brother

[@vaibs24]

This man plays something unique role in my life, idk why...❤️

[@khushigupta4177]

My school teacher fiinished this chapter in just two days 😂😂😂😂🤣🤣 Alakh sir na hote toh it was impossible for me to understand this chapter😘😘😘love u physics n chemistry ke superman 🤗🤗 Stay blessed!!!!!!!!!

[@ejaz8295]

Meri mam bhi sirf 3 din Mai khatam Muja laga es lesson Mai kuch nhi hai😆😆😆😆

[@abhijitsingh734]

@@ejaz8295 hamari madam ne kabhi feel hi nahi hone diya ki physics hard hai....kyuki usne kbhi zindagi me numericals krvaye hi nahi.....usne to SHM, Elasticity chapters syllabus me se delete krva diye ha taki hame problem na aaye....usne sirf article hi krvaye ha hame.....aur vo khud ko best teacher kehti ha😊😊........

[@ejaz8295]

@@abhijitsingh734 😂😂😂😂

[@morningglory.213]

Khushi Gupta well my physics sir is better lmao He even gives us many assignments and notes also

[@Muskan_gupta_AU]

Same here ...my teacher also completed it in 3dayss

[@Hrs_ydv]

Is my hand and like button are point masses...?my hand attracts toward like button after watching alakh sir's video..😊😊🥰

[@gurutsering1933]

@Talent Enhancement Academy .

[@MYWORLD-yx4qr]

Alakh sir ki gravity hi itni kamaal ki ki koi bhi unke video ki taraf khicha chla aa jata hai😄😄

[@yonrooo]

Before watching the video...

[@rakeshtanwar1880]

Beautiful and lovely comment

[@akshatjain2277]

kzbin.info/www/bejne/qqvbZZhmmNVpa68 Unacademy ' s Father 😁

[@RAJPUTANA288]

Hlo sir m uptgt ki tiyari krrhi hu or tution bhe pdhane lgi hu aap k lecture dekh kr hm bhut motivate hue or khud kuch project bnay h or bccho ko pdhate h bccho ko physics m mja aane lga h ye sb aapki vjh s h aapka bhut bhut dhanyevad aaj hmko bhut tej fever h mummy subhe s pdhne nhe de rhi the hm revision krrhe h 🙏

[@absarahfairuz9469]

Brilliant 👌 He truly understand which maths will blow our mind.

[@laxmipriyasahoo495]

Sir, your teaching is very interesting and inspiration for me. God bless u.

[@raviranjan2512]

Sir... You save my tution fee and time!!! Thanks again for your help:)

[@Medicmon]

Mine as well

[@hrushikeshkachgunde4829]

Download videos from youtube for FREE kzbin.info/www/bejne/bZmci4VomNOAbbM

[@OhNooJosephJoestar]

Bhai sir ko paytm pe bhejdo thode se Motivation milti h When you get money for your help

[@DeepakGurjar123_]

Your 6 year old videos are so helpful today I am so lucky to find your video❤❤❤❤

[@dishamankotia4434]

Found this channel randomly and now i am in love with it 😊😀😀

[@stuffy5727]

Plz subscribe this channel 👉👉👍kzbin.info/door/xOhQUO8fvZp6YEgif6TEzg👈👈👌

[@fanningclub6821]

Found u randomly and now......

[@kusummaurya2359]

Achha h

[@aryanSingh-ff7ln]

U mean Randomly?

[@fanningclub6821]

@@aryanSingh-ff7ln ya

[@tanmaysharma2754]

The Only man on this planet who can make us visualize things without any animation.

[@aparnaverma1562]

Sir - gravitation law is not formed by falling of apple 🍎. Me - Whole life was a lie 🤣🤣🤣

[@kushagragangrade]

🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣

[@badmunda1054]

Right

[@srijitpatil209]

😂

[@anamikagoswami06]

😂🤣🤣

[@rahisqureshi9268]

Yes you are right

[@abhishek7944]

Hi Alakh, the solution to the problem at 47:39 is incorrect for the following reasons: 1. The two blocks will be touching each other (your diagram shows a separation)2. Hence, the separation between them is too small to treat the two blocks as point masses and apply Newton's Law of gravitation. You will have to calculate the field due to the first block and then the force on different point of the 2nd block using integration. The error in your solution is of the order of 7%-8%. While the forces act through the centres of the two blocks, calculation of grvaitational attraction between a cube and a cuboid is very complex (refer James et al, The Gravity Field of a Cube ).It will be great if the correct approach can be incorporated in the video. This will help the student immensely and remove misconceptions. Best Regards

[@dsbmaximus406]

How he got l/2×√2 in 46:37

[@AlokMishra_tech]

best teacher i have ever found in my last some years.......... love you sir from the core of my heart

[@devd_rx]

hints to solve the last question: 1) form overall expression for force acting on m. 2) try integrating it 3) your d(_ _ _ _) won't be suitable 4) try finding the value of dF 5) still not enough, try finding value of dm 6) again, still not enough, try finding value of dx or dL or another expression in d( - - ) 7) now its enough :) you can easily take out all the constant values and integrate the expression under the integration symbol (make sure to use proper limits by considering symmetry and use the hints which sir said)

[@shrishtiyadav9017]

Answer kya aa rha h??

[@arijitbanerjee8838]

Itna vela tum?

[@anonymousff7177]

,

[@miyukishirogane-zr2so]

Mai san????????

[@sudhashrivastava3650]

Can u please tell answer

[@riturajpandey7501]

The lectures, the contents uploaded here are just incomparable❤️! Currently, huge no. of students are studying from here I'm sure...and the coming generation too, will be seen here with a new zeal in each coming new year!💫💫🔥🔥 Humble honour to you Sir!❤️❤️

[@Kaleshi_auratt]

Heyy is this lectures are enough for neet 2023???

[@alokgurjar8953]

@@Kaleshi_auratt Yes obiyosly... But i thought you should follow one day one chapter series by alakh sir.....

[@Kaleshi_auratt]

@@alokgurjar8953 where it is available please send me the link 🥺🙂meine woh dekha tha 1 shots but woh revision ke liye... Actually I haven't started those chapters that's why

[@devilslearning1190]

Bro do u have the pdfs of these old lecturs i really need that

[@SushilKumar-kw2fo]

Kon Kon ye video 2024 me dekh rha h 😊

[@studentofkvn.o1golcondahyd889]

me

[@urmiladas5045]

Alak pandey sir = jitu sir from Kota factory....hit like .,....😘😘😘😍

[@awaznhiaarhiyrrr8682]

Nhi Urmila das alak Pandey =koi nhi yrrr

[@IronMan-fb1sl]

Alakh pandey sir sabse aage hai

[@abskamo7483]

*Jeetu Bhaiya

[@Elevatestudio1]

factory nahi faculty

[@yash9587]

🧐

[@darksniper578]

How many of you are noticed that.... Formula of escape velocity is written on t - shirt of our sir😊😊😜😜✌️✌️✌️👌👌👍

[@Living_it_late]

Mene Kiya notice

[@ughhh5745]

Me too

[@akhileshkumarmishra3617]

Sir khud bole ye cheej on next lectures

[@ughhh5745]

@@akhileshkumarmishra3617 hmm

[@shikhabafna2876]

That's what I was wondering

[@gyasuddin5027]

Option 'D' (2/π GmM/R² j^) is correct 🥰

[@Krishmaan001]

How

[@user-Dr.T.S]

Mata pita ne halato ka samna karna sikhaya.Or guru ne mujhe halato se ladkar ek nya rasta dikhaya....❤❤❤ Thanks a lot sir......

[@electromatic4103]

After watching S- block elements and Hydrogen in pace series(no other option🙂) and then coming back to alakh sir for gravitation is just different type of excitement .

[@Watchit_short]

Hn yr

[@emaan2145]

"Dil toh bacha ae ji". Kehoooooo😂😂😂😂. Love you sir.. 🥰🥰

[@T_28.r]

Army

[@moviesworld2519]

You are real life hero sir Or ha good singer

[@alifiya02feb]

Yes really good singer also

[@himanshusinghrajput3806]

Nice

[@BeautyLaw]

Sir 🙏🏻your understanding power is very helpful

[@Filmiraj27]

System 🎉

[@SciStoryInsights]

East or west physics wallah is the best

[@nitrobash]

@@nooneelse9884 Aap bhi padhaaiiii karooo comment mat karo

[@mohammadtalhakhan1718]

Bhai yaaar physicswallah ke video men ye comment pad pad kr thak gayan hoon koi aur dialogue nahi bacha hai kya

[@SciStoryInsights]

@@nooneelse9884 hum kuch bhi kare tumese kya mtlb

[@SciStoryInsights]

@@nitrobash correct

[@KamleshKumar-li2rq]

Larne se koi fayada nahi h

[@sgsupergaming7483]

1:05:18 Ek dum inhone waqt badal diya, jazbaat badal diye, zindagi badal di....

[@dipamdey6814]

Ok no problem🤣

[@arceus2775]

this one got me lmfao XD

[@pineapplepitch413]

Mera bhi kata tha bhai

[@bhartichauhan6153]

🤣🤣😂😂 ha bhai

[@harshkharwar5951iiit]

Sir's explanation of chapter is SIMPLY AWESOME 🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥❤️❤️❤️🔥

[@JAI_BHARAT_JAI_SANATAN_VIGYAN]

Rig Veda-1-103-2 explains: “The gravitational effect of Solar System keeps the earth stable.”

[@muskannthakur]

Really??

[@JAI_BHARAT_JAI_SANATAN_VIGYAN]

@muskannthakur yes the solar system gravitational effect keeps the earth stable on axis and earth revolves around the sun and rotate on its axis ,, this shloka is in rigveda and Surya siddhant book 👍🙏🙏🙏🙏🙏

[@drstudiesnrocks4744]

Sir Your style of teaching is marvellous.I wish you should have been my teacher.👍🏼👍🏼

[@everythingatonce9673]

He is OUR teacher.This one is better.

[@rohitkodag8958]

Answer for last question is option d)2GMm/πR²

[@sidsclassesforneetandaiims7777]

Yes fuccker

[@islamophilia28]

Can u explain me???? Plzzzzzx thodi confusion h mjhe uss quesn m

[@techwithajeet7794]

@Chandrapal Singh Nhi Bhai.... problem hoga Samajhne me khi khi pr

[@vishalsingh-xs7dr]

@@islamophilia28 its easy just integrate sintheeta component till pi by 2 and multiply by 2. basic integration.

[@iamsam5]

Powerful People ✊ make places Powerful 💪...is Right for Alakh Pandey Sir 🔥🙏😇

[@asmotorvloger]

Pehli Baar moojhe Kuch samaj Aya hai physics mein or vo aapki vja se sir thank you so much❤❤

[@sushmanomula9800]

other teAchers: most important most difficult sawwal alak sir: pyaara sawaal jaldi aa jayega try karo!

[@divyabharti8642]

😊🤗🙏🏿😌

[@princesscinderella5642]

I am a offline student of aakash dropper batch...but I can't understand physics there🥺...I feel to depressed and get lower marks in tests compare to other subjects. Sir I find this channel...I really feel happy now...Thank u sir to provide such a beautiful class ❤️ 😊. How amazing u taught the tough concepts in simply 🥰....lots of respect for u sir🙏🙏🙏

[@ashutoshranjanpandey535]

Same situation bro

[@ShubhamSharma-pc2hg]

Same but I am in 11 clas

[@ArchitSehgal]

Kuch Sharm kr aur pdh le

[@princesscinderella5642]

@@ArchitSehgal 😒😒

[@gouravsoni9164]

Answer of the last question is 2 GmM/πR^2

[@anuragrai8128]

can you plz tell me that why do we use integration and differentiation?????? plzzzzzzzzzzzzzzzzzzzz

[@Mayurishihz11]

@@anuragrai8128 it is a mathematical tool ..

[@anuragrai8128]

@@Mayurishihz11 what's the purpose of it.....like in the video sir directly used integration without any second thought..... I didn't did work, energy, power and rotational motion yet.... So did he explained something about it in those given chapter or what.

[@nibbacheese5109]

@@anuragrai8128 the method of integration is used for continuous bodies. In case of force, different parts of a continuous body attract the point mass by different amount of force. Therefore, we consider a small point mass part of the continuous body (dm). Since dm is a point mass, we can easily use the formula for force due to gravity on it and hence, calculate the force due to the whole continuous mass with the help of integration.

[@anuragrai8128]

@@nibbacheese5109 ahhh beautifully explained..... thanks really appreciated!!!!!!

[@monusonu-c7m]

हम तेरे बिन अब रह नहीं सकते तेरे बिना क्या वजूद मेरा? हम तेरे बिन अब रह नहीं सकते तेरे बिना क्या वजूद मेरा? तुझ से जुदा अगर हो जाएँगे तो ख़ुद से ही हो जाएँगे जुदा क्योंकि तुम ही हो, अब तुम ही हो ज़िंदगी अब तुम ही हो ओ-ओ-ओ, चैन भी, मेरा दर्द भी मेरी आशिक़ी अब तुम ही हो तेरा-मेरा रिश्ता है कैसा? एक पल दूर गवारा नहीं तेरे लिए हर रोज़ हैं जीते तुझ को दिया मेरा वक़्त सभी कोई लम्हा मेरा ना हो तेरे बिना हर साँस पे नाम तेरा क्योंकि तुम ही हो, अब तुम ही हो ज़िंदगी अब तुम ही हो ओ-ओ-ओ, चैन भी, मेरा दर्द भी मेरी आशिक़ी अब तुम ही हो तुम ही हो तुम ही हो तेरे लिए ही जिया मैं ख़ुद को जो यूँ दे दिया है तेरी वफ़ा ने मुझ को सँभाला सारे ग़मों को दिल से निकाला तेरे साथ मेरा है नसीब जुड़ा तुझे पा के अधूरा ना रहा, mmm क्योंकि तुम ही हो, अब तुम ही हो ज़िंदगी अब तुम ही हो ओ-ओ-ओ, चैन भी, मेरा दर्द भी मेरी आशिक़ी अब तुम ही हो क्योंकि तुम ही हो, अब तुम ही हो ज़िंदगी अब तुम ही हो ओ-ओ-ओ, चैन भी, मेरा दर्द भी मेरी आशिक़ी अब तुम ही हो

[@channelmishra1631]

😂😂

[@monusonu-c7m]

@@channelmishra1631 😅

[@adilansari5772]

answer of last question is (d) --- 2GmM/pi R^2 ^j

[@mathisemotion6794]

Plz what's app me in 7557032456 in this number...

[@LegitGamer2345]

Adil Ansari bro I am getting pi r^3

[@ascreation1850]

It's right

[@siddharth_gupta_]

Right bro

[@adnanbarwatiya5459]

Shi hai

[@dhruvgarg1913]

Best lecture on "Feeeeeel" of law of gravitation 😊☺️ # physicswallah ❤️🤘

[@manojshukla6287]

Juuy

[@darshilpatel2570]

Sir aap you tube par popular ho gay ho.I think physics wallah education no.1 chennel School is teacher aap ki video dekhakar hame padhate he example aap karate ho vahi karate he

[@enlightenment3362]

Definitely

[@ayush_13x]

@@annu003 yes

[@ishaaggarwal3427]

Yo

[@kittushahi2183]

Kon s skool s ho ...Mr. Darshil Patel

[@DevashishGupta-f1l]

Answer is GMm/r^2 This is because F = Gm integral(dM/r^2) Now since r is also constant for all points (as its a semi circle).. r comes out of integral sign F = Gm integral(dm)/r^2 F = GMm/r^2

[@vasujindal1838]

One #like for this great teacher👌

[@aryankeshri7199]

Are Wah Sir ...Aapne hamari sun li ❤❤❤😍😍😍

[@awaznhiaarhiyrrr8682]

Acha

[@Canseefornewchange]

Sir I'm addicted to your channel after watching the chemical bonding, chemical kinetics and chemical+ iconic equilibrium and back here for completing gravitation ❤️🇮🇳

[@Alakh_Gyan]

Same here tho

[@shikeshkumar9658]

Hey

[@Farhaselli]

Alakh sir old videos are dimond 💎

[@pandey6865]

Diamond se bhi kimti❤

[@Farhaselli]

@@pandey6865 ofcourse ☺️☺️

[@pranjayjain]

Anyone else who is starting this chapter in 2019 ?

[@piyushupreti8079]

Bhai mai 🤣or ghanta kuch smjh ni aara kyuki circular motion pdha hi ni kabhi

[@Living_it_late]

I am also

[@pranjayjain]

@@Living_it_late 👍

[@Living_it_late]

Pranjay Jain you are an iit student right

[@pranjayjain]

@@Living_it_late not now 😅 but I will be

[@srivamsimajhi4922]

Sir ki pasina kis kisko dikhai de Raha hai?.... 37:36 pe Dekho .... Sir is absolutely great !!!! Stay blessed sir ...

[@tulikachakraborty6244]

@Physics Wallah - Alakh Pandey ur songs r awesome and removes all stresses which makes me relief and pay more attetion to your lecture. It removes boredom . Ur teaching style is awesome sir.

[@Freefirestory456]

Selection ho gya kya 😢

[@emBraceYouself]

In the example of the principle of Superposition of forces, why 3rd option can't be correct? 1:02:23

[@AbinBinoy1134]

it only works for point object bro

[@Bewgula]

it only works for point size object. Since the rod is itself made of many point size masses(dm) . we integrate them

[@tmrapper6378]

​@@Bewgulathen the question in which we find central forces and normal reaction,how we assume com

[@ajitsingh905]

​@@AbinBinoy1134accha to wo central force wala case mei to nhi huwa ye sab baat direct centre of mass ka distance liyagya tha usme??

[@LunarBanda]

​@@tmrapper6378 43:16 since those two blocks of large size we assume that they are kept far apart from eachother (which makes those two blocks point masses wrt eachother). Hence we can directly take the distance from centre to centre. But here 1:02:00 one of them is point mass and the other is large mass. so we cant assume both to be point massses in any way

[@parassundriyal1009]

I wanted to tell the 2years ago wale alakh sir now you are have achieved every thing 🤩

[@rachitmehta7738]

ikr !!!

[@shivampathak6167]

#Answer of last question Option (d) 2GMm/pi R^2 is correct. If som1 get confused plz take the length of mass dm and M which is RdQ (arc) and pi R And equating the ratio M/pi R = dm/RdQ From this put value of dm in integration of Gmdm sinQ/R^2 by taking the limits from angle 0 to 180 . Hope u will get the ans and it will help you 😊😊 Thank you very much sir 😊😊

[@shivampathak6167]

@Addictive GamerZ I am very happy that it worked for sm1 but I think that this thanks will go to our respective sir bcz I studied from sir

[@amankumarbehera9046]

Bro how it's dmSinΦ😟

[@shivampathak6167]

Bro han tumne ek or cmnt bhi kiya tha pr mai dhundh nhi pa rha vo puchh skte ho Mai is id ko use nhi krra tha bde dino se isiliye reply me time lg gya 😅

[@RiteshkrRawat-dv6dt]

bro plzz can u tell y there is Rd theta

[@shivampathak6167]

@@RiteshkrRawat-dv6dt bro when u take a small element dm then it will make an arc on the semicircular ring with the center Also length of the arc say radius is R and the small angle is dQ so from the formula of arc length which is Lenght= Q x radius So Q is dQ and radius is R so it will be RdQ U can check the formula on google also Hope it helps 😊