A liquid of density 1200 kg/m3 is flowing steadily through a tube of v – McqOptions

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1.	A liquid of density 1200 kg/m3 is flowing steadily through a tube of varying cross section as shown below. The cross section at point A is 1 cm2 and at B is 20 mm2. The points A and B are in the same horizontal plane. The speed of liquid at point A is 10 cm/sec. The difference of pressure at A and B is
A.	100 Pa
B.	170 Pa
C.	144 Pa
D.	180 Pa
Answer» D. 180 Pa

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