Has the highest penetrating power. Can penetrate our body. Even several cm thick of lead or several meters thick of concrete cannot stop all of it. Gamma Alpha Beta

The correct answer is Gamma radiation.Gamma radiation has the highest penetrating power among the three types of radiation mentioned. It can penetrate several centimeters of lead or several meters of concrete, making it the most penetrating type of radiation.Alpha particles have the lowest penetrating power and can be stopped by a sheet of paper or a few centimeters of air. Beta particles have a moderate penetrating power and can be stopped by a thin sheet of metal, such as aluminum.Gamma radiation is the most penetrating because it is a high-energy electromagnetic wave, while alpha and beta particles are charged particles with lower energy. The high energy of gamma radiation allows it to penetrate deeply into materials, including human tissue, which can be harmful if exposure occurs.