The buoyant force is an upward force exerted by the fluid in opposition to the weight of an object that is partially or totally immersed. Thus, the true option of the buoyant force is (D), It acts in the upward direction.
What is a buoyant force ?
When an object is placed in a fluid, the fluid exerts an upward force which we called as buoyant force or buoyancy.
Buoyancy occurs due to the difference in pressure on the opposite side of the object. When the depth increases, the pressure increases and the pressure on the bottom of the object is always higher than the pressure on the top.
Due to buoyant force, the object in the fluid goes upwards. Buoyant force is based on the principle of Archimedes.
Thus, the option (D) It acts in the upward direction, is the correct answer since buoyant force is the force which exerted upward by the fluid.
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