Class 11 Physics | Fluid Dynamics | #7 Bernoulli's Theorem | For JEE & NEET

[@uknome2754]

u write like a pro ..bro

[@physicsgalaxyworld]

Thanks bro

[@shivamverma9447]

@@physicsgalaxyworld 😎😎😅😅😅

[@Toxic_Aditya]

@@physicsgalaxyworld 😅🤣

[@varunrajesh1729]

@@physicsgalaxyworld 😮😮😂😂

[@passionate_jj]

​@@physicsgalaxyworld😌😌

[@rizankc007]

10 years of this video❣️ thanks ashish arora sir for your lectures.... Loved it from Nepal!

[@ananditatiwari21]

Hope it helps Common doubt would be - why P2 pressure does negative work? First thing is pressure is a scalar quantity , it doesn't have direction . ..let's consider the free surface at end 1 ..the free surface at end 1 will have net inward force bcoz of the intermolecular forces on particles of free surface by the particles behind it so force on end 1 is inward in direction so positive work On end 2 the free surface will have a direction inward leftward due to the intermolecular forces on it due to the particles behind it inside the pipe....so force 2 is in opp direction of motion of water molecules...so it has negative work...

[@namanbartia6845]

Pressure has direction...which is normal to surface(for a non viscous fluid)... because of not following vector law of addition it is a scalar quantity

[@utkarshiitbhu4204]

@@namanbartia6845 no Pressure acts in all direction It just happens that on a surface some gets cancelled out and u get the one which is normal to the surface

[@AnkitPal-cb4ke]

​@@utkarshiitbhu4204why we get only pressure in normal direction

[@uditjec8587]

I have asked so many times this question to so many platforms but bhai no one has clear answer to this till date.

[@DEEPANSHUAGGARWAL]

Hello Sir I need your advice. Sir I am dropping this year. and I am in dilemma that are dc pandey with some selected problems of Irodov enough for jee.. I mean is there any need to go for HC verma also then?

[@habunglarin2319]

@Hey! Its Nikhil (Samar) no

[@anuragkumarsingh2169]

have u cracked it bro?

[@rdbharti9231]

i was not able to unerstand on what basis we took work of p2 negative why p2 is opposing the flow??

[@physicsgalaxyworld]

For the considered fluid body in the pipe line shown, P2 is the pressure at the outer edge of the tube... thats why it is considered opposing the flow coming out of tube...

[@aspiringscientist1616]

@@physicsgalaxyworld Thanks sir... U are so responsible and diligent trying to solve each and every doubt of students...

[@ayushsaxena1164]

Sir here P2 is fluid pressure by an outside force ( or atm) or the fuid pressure due to the push of flowing water. Sir i am not getting it .🤔🤔

[@whoknows6847]

Bhai 4 saal baad samjh aa gya to mujhe bhi bta do same doubt aa rha hai

[@vanijnoob9797]

@@whoknows6847 lol mujhe bhi

[@ShreyaDeshmukh-ms9dg]

It is the pressure of the fluid to the right. If it were atmospheric pressure, then we wouldn't have used different notations (P1 & P2).

[@puneethgowda6819]

Sir have u done booster classes for fluid mechanics

[@ujjwalkar1886]

Sir what is P1∆V and P2∆V ?I can't understand . I follow your lecture in sequence of physics galaxy app . But I can't find this previous .

[@nSackStyles]

In region 2, direction of pressure is on left side right? Meaning force per unit volume is Acting against the velocty of fluid flow & that is why work done is negative ?

[@vishalsinghrajput6804]

Sir as pressure due to fluid is multidirectional i mean pressure is directed in all direction So that in case of surface it is directed always from open end to inner fluid media so that p2 in case of upper surface is opposing the flow and p1 in case of lower surface increases the flow ? Please sir is it correct ?

[@physicsgalaxyworld]

Yes in a way you can consider that...

[@jeeadvanced1230]

Thank you sir ❤❤❤❤❤, you are legend in making us to love physics ❤❤❤❤❤❤

[@mohdkaif1136]

sum of pressure energy, potential energy ,and kinetic energy for idel fluid is constant along streamline.....right or wrong sir...

[@physicsgalaxyworld]

Yes.

[@yourfriend6096]

Per unit volume, r8?

[@prithubharadwaj3744]

In hydrostatics fluid is at rest wrt to what? in hydrostatics fluid is at rest wrt to what frame? in hydrodynamics fluid is moving wrt to what? the KE term in bernoulis theorem (velocity of fluid) is wrt to what frame? how to apply bernoullis eqn whe pipe itsel is accelerted? how to apply bernoullis eqn if pipe is moving wrt water?

[@physicsgalaxyworld]

You need to follow the basic lecture of dynamics and then its booster classes to develop your basic understanding... using inertial and non inertial frames I have already explained in those videos...

[@ayushKumar-mk1lk]

Frame might be W.r.t ground....

[@physicsgalaxyworld]

Not necessary... it can be directly applied in any inertial frame of reference...

[@sameermathur2325]

@@physicsgalaxyworld iss accha toh answer hi de dete sir

[@carryminnnnati]

sir where are those booster classes help me get 🙏​@@physicsgalaxyworld

[@user-ci1qx5sf6b]

THANKS SIR

[@entertainmentkathikanaa2004]

Good explanation

[@shashwatagarwal7067]

Sir I know you are very busy but can you please tell your your team to dub videos in Hindi and upload them

[@balakabalachandar1858]

english is better to all

[@devanshurajput3841]

Sir, plz do analysis of neet '17 physics and share some tips for neet' 18...Thank you sir..

[@physicsgalaxyworld]

exam analysis videos will be posted soon...

[@shivamsahil3660]

Nice work sir

[@ashutoshpadhi2782]

sir in energy conservation...how you have used p∆v

[@user-qs4ox6cf3z]

Pressure × volume...check dimensions ...it will come out same as work

[@punisher4422]

W.D=F.s=PA.s=P.V....isnt it simple.

[@punisher4422]

@UCSH6-b_XRnoB5D3-uR9q1jQ 😂😂😂 Konse class mein padhta hai be tu...itna bhi nhi malum....ohhh ....sry class 9 ya 8 ya 7....lekin unko to malum hai ki Vol=area*length.

[@hmmletssee3809]

@@punisher4422 Bhai fir bhi kya huya agar puch bhi liya

[@aamreenfatima4853]

16 Oct 2020

[@krshna3030]

Maine to rat liya😁😁😁😅😂

[@alikhan1964]

Nice

[@pramodravidas1271]

Sir lagta h apko sardi hua h

[@bharatrai3677]

Can you speak in hindi it is bettr than it