Which of the following statements is incorrect? By applying a small force to a s

Question

Which of the following statements is incorrect?

By applying a small force to a small area of fluid, it is possible to produce a large force acting on a large area of fluid.

If the pressure of a fluid changes at one point, the pressure of the fluid at any other point changes by an amount proportional to the depth of the point.

Specific gravity is ratio of the density of a fluid to the density of water at 4 degrees Centigrade.

Density, which is the ratio of mass to volume, is useful for describing systems which do not have a fixed shape.

Explanation / Answer

P = F/A

pressure is inversily proportional to area . if pressure is constant then only fist option correct.

so the first option is incorrect

P = rho gh

P is proprtional to height

option (2) is correct

option (3) is incoreect because

SG = density of the object/ density of water

option(4) is correct

density = mass/ volume

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