AP EAMCET202021 Sep 2020Morning ShiftPhysicsMechanical Properties of FluidsActual
Water is flowing through a horizontal pipe in streamline flow. At the narrowest part of the pipe
Options
- Avelocity is max and pressure is min
- Bpressure is max and velocity is min
- CBoth pressure and velocity are max
- DBoth velocity and pressure are min
Correct answer
A. velocity is max and pressure is min
Step-by-step solution
According to Bernoulli's theorem, for stream line flow through horizontal pipe. (p+ 1 2 V^2= constant ) ...(i) where, (p= ) pressure, (v= ) velocity of liquid and ( = ) density of liquid. Hence, according to principle of continuity, at narrowest part of the pipe, velocity is maximum. Hence from Eq. (i), pressure is minimum at narrowest part of the pipe.