How many rads is equivalent to 1 gray?

One gray is defined as the absorption of one joule of radiation energy by one kilogram of matter. The relationship between gray and rads is based on the conversion factor where 1 gray is equivalent to 100 rads. This conversion is important in radiology and radiation physics as it helps in understanding dose measurements and ensures consistency across different units of measurement used in radiation therapy and diagnostic imaging.

Thus, when considering the option that reflects this relationship accurately, the choice that states 1 gray is equivalent to 100 rads is correct. Understanding this conversion is crucial for professionals in the field, as it allows them to effectively communicate and compare radiation doses using different units.