Along a stream line. 11 | Mechanical properties of fluids. PHYSICS NCERT EXEMPLAR HINDI | Doubt...

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A non viscous liquid of constant density 10^(3) kg//m^(3) flows in stream line motion along a vertical tube PQ of variable cross-section. Height of P and Q are 2m and 2.5m respectively. Area of tube at Q is equal to 3 times the area of tube at 'P'. Then work done per unit volume by pressure as liquid flows from P and Q. Speed of liquid at 'P' is 3 m//s .

There is a stream line flow of water in a horizontal pipeline ofnon-unifon11 cross-section . The velocities of water at two points. A and B in the pipe are 1 m/s and 2 m/s. The pressure at A is 2000 pascal. What is the pressure at B ?

Statement-1: The shape of an automobile is so designed that its front resembles the stream line pattern of the fluid through which is moves. Statement-2: The shape of the automobile is made stream lines in order to reduced resistance offered by the fluid.