Get premium membership and access revision papers with marking schemes, video lessons and live classes.
Figure 2 shows two cylinders containing a liquid and connected with a tight-fitting flexible tube. The cylinders are fitted with air-tight pistons A and B as shown.
![figpressure18520201210.JPG](/courses/uploads/figpressure18520201210.JPG)
When equal forces, F, are applied on the pistons as shown, it is observed that piston A moves up while B moves down. Explain this observation.