Among the tasks listed, the one completed with infrared radiation is:
- Diagnosing a broken bone or decayed tooth
Infrared radiation can be used in certain imaging techniques, such as thermography, to help identify issues in the body, including diagnosing conditions related to bones and teeth. The other tasks typically involve different types of technology, such as radio waves for cell phone communication, light for fiber optic cables, and ultraviolet light for sterilization in hospitals.