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Find velocity in tube AB?
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Asked by ashutosharnold1998 | 27 Jul, 2019, 20:19: PM
answered-by-expert Expert Answer
We know Bernoulli's eqn.. P+(1/2)ρv2 = constant, where P is pressure, ρ is density and v is speed of fluid.
 
Let Po be the atmospheric pressure. Hence absolute pressure inside bulb (P+Po)
 
Inside bulb, air is stagnant .  At point C, pressure is ( Po- ρgh )  and let at point C air velocity be V
 
Then by Bernoulli's eqn,   (P+Po) = ( Po-ρgh ) + (1/2)σ V2 .................(1)
 
From eqn.(1), we get  begin mathsize 12px style V space equals space open curly brackets fraction numerator begin display style P plus rho g H end style over denominator begin display style open parentheses sigma divided by 2 close parentheses end style end fraction close curly brackets to the power of 1 divided by 2 end exponent end style
Answered by Thiyagarajan K | 27 Jul, 2019, 21:37: PM

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