Question

question 2 of 25 which statement comparing the penetrating power of different types of radiation is correct? a. gamma radiation is less penetrating than alpha radiation. b. beta radiation is more penetrating than gamma radiation. c. alpha radiation is more penetrating than gamma radiation. d. alpha radiation is less penetrating than beta radiation.

Explanation:

Alpha radiation consists of large, heavy alpha - particles that are easily stopped by a sheet of paper or the outer layer of skin, so it has low penetrating power. Beta radiation consists of smaller, lighter beta - particles that can penetrate through a few millimeters of aluminum, having more penetrating power than alpha. Gamma radiation is high - energy electromagnetic radiation and can penetrate through several centimeters of lead or concrete, being the most penetrating among the three.

Answer:

D. Alpha radiation is less penetrating than beta radiation.