Question

What happens to the buoyant force acting on a submarine as it increases its depth inside the water?

• A. Increases
• B. Decreases
• C. Remains constant
• D. First decreases then increases

Answer 1

The correct option is A Increases

Surprisingly the buoyant force doesn't depend on the overall depth of the object submerged. In other words, as long as the submarine is fully submerged, bringing it to a deeper and deeper depth will not change the buoyant force. So, the buoyant force acting on the submarine remaims constant as it increases its depth inside the water.