12. Advance Illustration | Thermal Expansion & Calorimetry | Liquid in a Long W-Tube | Ashish Arora

The website, aimed at nurturing grasping power students, has classroom lectures on almost all the topics. It is an outcome of 23-year long toil of Physics expert who has made it a mission to simplify the complexities of Physics.

Ashish Arora, the brain behind this interactive unique website, has all his lectures available on web for free of cost. He has created a youtube channel in the name of Physics Galaxy. Today more than 6000 video lectures are being watched per day on this website which is highest among any other e-learning website in India. Till now more than 3.6 Million videos are watched on it. On each video subtitles are also available in 67 languages using google translator including English, Hindi, Chinese, French, Marathi, Bangla, Urdu and other regional and international languages.

Besides uploading transcripts of all his videos, he has created a software based synchronized European voice accent of all videos to benefit students in USA, Europe and other countries.

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[neerajsah]

Sir, why i am getting different answer if i am cmparing the pressure at bottom of column A and D?..i am getting 3.9 ×10^-3

[ashirwadgarg]

dear sir, why we are taking negative sign when we are moving up ???

[abcdec]

sir can this illustration be solved by the method used in illustration 7 where we had a single u tube and two arms were maintained at different temperatures

[sonamkaurkhurana]

Can the question be solved using rho = rho(0)×{1-gamma.deltaT}

[sonurana]

In this Q why cant we just balanace Pa at base of A tube and B base(due to hydrostatic paradox) to get ans (which is giving different answer)?
Rho(95)52.8g=rho(5)51
And
Rho(95)(1+delta(change in T=90C) =rho(5)