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Barometer

A liquid of d...

Question

A liquid of density $ρ$ is filled in a U-tube, whose one end is open & at the other end a bulb is fitted whose pressure is $P_{A}$ . Now this tube is moved horizontally with acceleration 'a' as shown in the figure. During motion it is found that liquid in both column is at same level at equilibrium. If atmospheric.] pressure is $P_{O}$ , then find the value of $P_{A}$

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Solution

$P_{A} = P_{O} + f g h - f a l - f g h$
$P_{A} = P_{O} - f a l$

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