When rubber horn is repeated by pressed and released, air inside the tube rushes out with large velocity which in turn decreased the pressure over the tube. The liquid rises in the tube and it sprayed out with air through the nozzle.
When rubber horn is repeated by pressed and released, air inside the tube rushes out with large velocity which in turn decreased the pressure over the tube. The liquid rises in the tube and it sprayed out with air through the nozzle.