Properties Of Matter

The figure shows a liquid of given density flowing steadily in horizontal tube of varying cross - section. Cross sectional areas at \(\mathrm{A}\) is \(1.5 \mathrm{~cm}^{2}\), and \(\mathrm{B}\) is \(25 \mathrm{~mm}^{2}\), if the speed of liquid at \(\mathrm{B}\) is \(60 \mathrm{~cm} / \mathrm{s}\) then \(\left(\mathrm{P}_{\mathrm{A}}-\mathrm{P}_{\mathrm{B}}\right)\) is :

(Given \(\mathrm{P}_{\mathrm{A}}\) and \(\mathrm{P}_{\mathrm{B}}\) are liquid pressures at \(\mathrm{A}\) and \(\mathrm{B}\)% points.

density \(\rho=1000 \mathrm{~kg} \mathrm{~m}^{-3}\)

\(\mathrm{A}\) and \(\mathrm{B}\) are on the axis of tube