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Wings of Aero plane Wings of an aero plane are made tapering. Bernoulli’s principle is used in an atomizer and filter pump. It is used in a carburetor to mix air and petrol vapor in an internal combustion engine. Venturi-meter, atomizer and filter pump Bernoulli’s principle is used in venturi-meter to find the rate of flow of a liquid. Many people find this situation paradoxical when they first encounter it (higher velocity, lower pressure).

Bernoulli's law states that if a non-viscous fluid is flowing along a pipe of varying cross section, then the pressure is lower at constrictions where the velocity is higher, and the pressure is higher where the pipe opens out and the fluid stagnate.
