A mechanic compares two identical hydraulic lifts. In Lift I the large piston is at the same vertical level as the small piston, while in Lift II the large piston is 0.50m lower than the small piston. Both lifts use oil of density 800kgm−3 and carry the same 12000N load on the large piston. How will the minimum input force on the small piston in Lift II compare with that in Lift I?
(a) It will be greater than in Lift I.
(b) It will be smaller than in Lift I.
(c) It will be the same as in Lift I.
(d) The comparison depends only on the piston areas, not on the height difference.