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B A The figure shows a liquid of given density flowing steadily in horizontal tube of varying cross-section. Cross-sectional areas at A is 1.5 cm 2 , and B is 25 mm 2 , if the speed of liquid at B is 60 cm/s then (P A – P B ) is (Given P A and P B are liquid pressures at A and B points. Density ρ = 1000 kg m –3 A and B are on the axis of tube)

1. 135 Pa
2. 27 Pa
3. 175 Pa
4. 36 Pa

Correct answer: 175 Pa

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