Final answer:
The correct answer is option 1) increases.
Step-by-step explanation:
If a radiographer moves closer to a source of radiation, the radiation exposure to the radiographer increases. This follows the inverse square law which states that the intensity of radiation is inversely proportional to the square of the distance from the source.
This means that as you halve the distance to the source, the exposure increases by a factor of four. To protect oneself from radiation exposure, it is recommended to increase the distance from the source, utilize shielding, and limit the exposure time.
Radiation protection measures include keeping a minimum possible time in the radiation environment, maintaining as much distance from the radiation source as possible, and utilizing adequate shielding between yourself and the source of radiation.
Work likely to cause an increase in radiation exposure of a particular worker includes tasks that require being at a closer proximity to radiation sources without proper shielding or exceeding recommended time limits for exposure.