RESOLVED-07🎆 IRODOV 1.333 REAL MEANING OF GRADIENT IN VISCOCITY- A GENERAL MISCONCEPTION CLARIFIED

[@prajjwalvish9842]

Thanks a lot sir for this video.. Made me realise how trivial my knowledge of fluid mechanics ism

[@PHYSICSSIRJEE]

Keep watching all the videos . You will learn something new and things that are fresh in approach. All the best 👍🙂

[@fanofjanardhanudusir4848]

Sir you are the real hero who works who work 24/7 like soliders all other sirs are cenima heros only dummy no content

[@oswald7994]

Wonderful video ❤️ Jee advanced definitely thrives on these hidden observations one should make even in ncert textbooks by careful reading. The exploration of concept was awesome🙌

[@PHYSICSSIRJEE]

Thank you 🙏☺️ , keep exploring the channel 👍

[@renusingh5478]

Loved The Discussion and Enjoyed the Depth ... Thank you For Such an Enlightening Way of Teaching!!!

[@Lack_Of_Enemies]

Thank you. Much needed this was. 💯💯

[@saubhagya2028]

Amazing explanation sir

[@govindnarayanjadia5121]

sir you are really great. This was my doubt and you cleared it very easily

[@AshokKumar-rb3qp]

There is always something special to learn from your video sir. Thanks a lot. ❤❤

[@arhaanahmad3953]

Thank you sir for such content. Keep posting we are with you 😉.

[@atridevbhattacharya5050]

sir excellent explanation

[@JEEAspirant-ub3id]

Thank you so much sir, really enlighting

[@akiiiphysics3345]

I am seeing ANOTHER CHANNEL WITH 100k+ followers in coming future very soon..thank you sir for starting it

[@PHYSICSSIRJEE]

That's very sweet of you to say 🙂💓

[@musicloverr547]

Best conceptual qs.

[@domgesh392]

Gem 💎 problem....👍👍 awesome explanation

[@Fighter_Believer_Achiever]

Thank you very much sir🥳🥳🥳🥳

[@subhradeepmahata9470]

One of the best physics channels on youtube for sure!!

[@PHYSICSSIRJEE]

Thank you . Kindly keep sharing and help the channel reach wider audience

[@prateekbheda9802]

Thank you sir 😊

[@vikramjitsingh1592]

Sir bcoz of u I am in love with physics 😍

[@as.if_0077]

Thank you sir🔥

[@manantripathi8663]

OP 🔥🔥🔥🔥🔥🔥

[@aryansaxena8081]

Sir but how we can think of great approach that you used @13:03 i mean how we can think that c must be independent of r that follows how to think that when to take right assumption as time is limited due to which any wrong assumption if taken and if not proved consumes so much time resulting in a time waste

[@PHYSICSSIRJEE]

C is torque , I proved its a constant from FBD on the left top due to steady Omega

[@aryansaxena8081]

@@PHYSICSSIRJEE ok well i didnt notice that anyway. Take another example where we take assumptions of friction to be zero and then we prove it somehow or our assumptions goes wrong bcz in many situation shape of object is irrelevant due to which calculation of forces become difficult so we take assumption first there and then we solve for proving it . so sir please tell me a way {approach} to think about what to take as assumption before solving such kind of questions since resulting in a failure causes a time waste sometimes much much time waste

[@physicsgram7127]

Example so Good 🙏🙏

[@PHYSICSSIRJEE]

Thank you 🙏🙂

[@Prashant-fh6px]

Sir what is eulerian equation and how can we use it in fluid problems?

[@aniketsen6845]

Sir please upload videos on shear, strain important concepts and problem solvings skills

[@PHYSICSSIRJEE]

Sure🙂👍

[@champapaul8060]

@@PHYSICSSIRJEE Op problem sir...I have shared the channel in 10 discord edu channels...they gave kudos to u sir....♥♥♥♥♥

[@Sonu-hv4ef]

While considering angular velocity gradient (r+dr)(w+dw), where does the term (w*dr) gone as it can not be neglected.

[@PHYSICSSIRJEE]

It's not a simple substraction . We compared this situation with the case of uniform w. So extra term which is the difference between two cases of uniform and non-uniform w in the figures is r dw only at 6:50 . Please follow the explanation along with the voice instead of just watching the slide. It will be clear 🙂👍🏼

[@hlo8214]

👌👌😃😃

[@Prashant-fh6px]

Difference between newtonian viscous fluid and solid .....❤

[@aryanseth548]

Damn I remember a very similar question in a FIITJEE AITS paper

[@ashishsarkar6990]

Sir I have a doubt...here in the question it was mentioned the flow to be laminar and fluid is viscous,so if the fluid is viscous it means that along the velocity profile each pt the magnitude of velocity vector changes along any line drawn from the centre to the periphery and that is mainly becoz there is a relative velocity, but sir the relative velocity here comes as there is a change in angular velocity of the fluid...sir is the fluid asked here in this case irrotational? and if so considering it to be irrotational then each pt along the velocity profile of the fluid there must be an increment in velocity due to angular velocity gradient,then how come the flow being considered is steady? Sir please answer 🙏

[@PHYSICSSIRJEE]

Please watch the latest Resolved video on irrotational vs rotational flow in viscosity or resolved series playlist

[@shaktimaan9628]

Sir , i have a doubt in this problem , why exactly do we take torque while integrating , why cant we take F=... and integrate and solve ; because the ans comes out to be different than when we take torque . please help Edit : Sir , i think i got it , is it because at steady state condition we can balance torque and they will come out to be equal but we cant balance forces on the cylinder to make omega constant . Pls clarify if my reasoning is correct thank you

[@PHYSICSSIRJEE]

Your edit is 👍🏼

[@shaktimaan9628]

@@PHYSICSSIRJEE thanks a lot sir

[@endlesseducation2845]

Sir is laminar flow means steady state?

[@PHYSICSSIRJEE]

No , laminar means no intermixing of layers . Steady flow means no change speed with time . There could be viscous flows ( spreading of oil on floor and stopping ) which are laminar and unsteady

[@binodbeharisaha4431]

Sir ,is this under syllabus in jee advanced?

[@PHYSICSSIRJEE]

Yes , as underlying principle of shear rate is from NCERT, it's possible it can be asked in a comprehension with some information provided 👍

[@binodbeharisaha4431]

@@PHYSICSSIRJEE sir is the magazine like MTG or Spectrum good for jee advanced ?

[@PHYSICSSIRJEE]

@@binodbeharisaha4431 I would recommend proper text books like Resnick, HC Verma, ncert and irodov instead. Also student has to complete previous JEE ADVANCED PAPERS completely for each chapter. Then if time permits , he/she can go for other materials

[@pneumaguitarist949]

Sir, Is There a way to give "likes" to this video 5 times??

[@PHYSICSSIRJEE]

I am very fortunate to have students who show support for quality and genuine content 🙂. A teacher always craves for that satisfaction first 🙏

[@Prashant-fh6px]

Yes make 5 accounts 😁

[@apoorvvyas52]

sir, what about w*dr term at 10:43 timestamp. Isn't it missing? Kindly explain.

[@PHYSICSSIRJEE]

It's not a simple substraction . Compare the picture with the case above in the slide . wdr exists in uniform w case also . In the non-uniform w case the r dw term is the only one responsible for causing viscous force. Please listen to the entire explanation in the slide with voice , instead of just looking at the case-2 . You will understand the concept 🙂

[@endlesseducation2845]

# 36 For my revision ( Very well explained..👌)

[@TechnicalDhruva]

Sir irodov died on exact date that I was born

[@PHYSICSSIRJEE]

Hmm, 😳

[@lakshyasharma8519]

Mr Irodov still alive?

[@TechnicalDhruva]

He died on my birthday. Exactly on my birthday 🥺

[@anishtakshak6515]

Thank you sirji☺❤