Which method is NOT effective for reducing radiation exposure?

Wearing protective clothing can be an important safety measure, particularly in certain contexts, but it is not universally effective in reducing radiation exposure. Protective clothing can help minimize the absorption of radioactive particles on the skin or clothing and provide some level of shielding from certain types of radiation. However, the degree of protection it offers can vary significantly depending on the type and energy of radiation involved.

In scenarios involving significant radiation exposure, other methods are generally more effective at reducing actual dose. For instance, increasing distance from the radiation source significantly decreases exposure according to the inverse square law, where radiation intensity decreases with the square of the distance from the source. Additionally, using appropriate shielding materials can effectively absorb or deflect radiation before it reaches a person. Rapidly completing work near the radiation source also minimizes time spent in an area of high exposure, thereby reducing the total dose received.

In comparison, protective clothing does not address the core issue of radiation source distance or the inherent intensity of the radiation itself, making it less effective as a standalone method for reducing exposure in many situations.