How many rotations does a BB illusion require for a 1/2?

In gymnastics, the BB illusion is a specific movement performed on the balance beam that involves the gymnast rotating their body while maintaining balance. For a 1/2 illusion, the gymnast is required to complete a half-turn, meaning they rotate their body just enough to switch their facing direction without completing a full rotation. This requires precise control and technique to execute properly and to remain on the beam.

The terminology in this context is important; a 1/2 rotation indicates that the gymnast has turned halfway around. This is distinct from a full rotation (1/1) or multiple rotations (like 2/1 or 3/1). Understanding this is crucial for scoring and judging purposes, as precision in these movements is key to a gymnast's overall performance. Therefore, the correct understanding of a 1/2 rotation in the context of the BB illusion leads to the conclusion that the answer is indeed 1/2 rotation.