How deep is it when a diver encounters 2 atmospheres of pressure?

When a diver encounters 2 atmospheres of pressure, this means that the total pressure being experienced is twice the pressure at the surface. At sea level, the atmospheric pressure is approximately 1 atmosphere (atm). To calculate the depth at which a diver feels 2 atmospheres, we can take into account that every 33 feet of seawater (FSW) increases pressure by an additional atmosphere.

Thus, at 33 feet, a diver encounters 1 atmosphere from the air and 1 atmosphere from the water above them, resulting in a total of 2 atmospheres. Therefore, when a diver is at a depth of 33 feet, they are indeed experiencing 2 atmospheres of pressure.

The correct depth where a diver experiences this pressure is accurately calculated as 33 FSW, illustrating the important relationship between depth and pressure in diving scenarios.