8.A solid is completely immersed in a liquid. The force exerted by the liquid on the solid will(i) increase if it is pushed deeper inside the liquid(ii) change if its orientation is changed(iii) decrease if it is taken partially out of the liquid(iv) Always in the Vertically upward direction.Select an answerAi, iiBii, iiiCiii, ivDi, iv

The correct answer is D (i, iv).

Here's why:

(i) The force exerted by the liquid on the solid is buoyant force, which depends on the volume of the liquid displaced by the solid. If the solid is pushed deeper inside the liquid, it doesn't displace more liquid, so the buoyant force remains the same.

(ii) The orientation of the solid doesn't affect the volume of liquid it displaces, so the buoyant force remains the same.

(iii) If the solid is taken partially out of the liquid, it displaces less liquid, so the buoyant force decreases.

(iv) The buoyant force is always directed vertically upward, against the force of gravity. This is because the pressure in a fluid increases with depth, so the pressure on the bottom of the solid is greater than the pressure on the top, resulting in a net upward force.