[amp_mcq option1=”bottom surface of the body” option2=”e.g. of the body” option3=”metacentre” option4=”all points on the surface of the body” correct=”option4″]
The correct answer is: D. all points on the surface of the body.
The normal pressure exerted by the liquid acts at all points on the surface of the body. This is because the liquid exerts an equal pressure in all directions. The pressure is greatest at the bottom of the body and decreases as you move up the body. This is because the liquid has to push against the body to support it. The pressure at the top of the body is zero because the liquid is not pushing against the body at that point.
The other options are incorrect because they do not take into account the fact that the liquid exerts an equal pressure in all directions.
- Option A is incorrect because the normal pressure exerted by the liquid does not only act at the bottom surface of the body. It acts at all points on the surface of the body.
- Option B is incorrect because the normal pressure exerted by the liquid does not only act at the edge of the body. It acts at all points on the surface of the body.
- Option C is incorrect because the metacentre is a point that is used to calculate the stability of a floating body. It is not a point at which the normal pressure exerted by the liquid acts.