The atmospheric pressure for each point in the liquid is same. Only difference in pressure comes from the depth of a particular point in the liquid from the surface (since P = hdg, h is the depth here).

Solution: The figure Q13.7 shows that points D, E and F have different heights from the surface. Point E is just below the surface. Point F is at more depth than point E. Hence, this point will experience more pressure than E. Now, point D is located even at a greater depth than point F from the surface. So, this point will experience greater pressure than that of point F. Thus, the required ranking of the pressure from largest to smallest is Point D > Point F > Point E.