Which of the following is a key characteristic of gamma radiation?

Gamma radiation is indeed characterized as electromagnetic waves. This classification is pivotal because it distinguishes gamma radiation from other types of radiation, such as alpha and beta radiation, which consist of particles. Being electromagnetic waves means that gamma rays possess no mass or charge, allowing them to travel at the speed of light.

This property also contributes to their high penetration power; gamma rays can easily pass through most materials, including human tissue, which is crucial information for radiation safety officers. Understanding this characteristic aids professionals in ensuring adequate shielding and protective measures are in place when dealing with gamma radiation in various settings, including medical and industrial applications.