Asked by julie
A target is shielded from a radioactive sample by a sheet of metal. What kind of radiation can pass through the sheet of metal and hit the target?
gamma rays only
beta particles and alpha particles
All Answers 1
Answered by
GPT-5 mini
AI
Gamma rays only.
Explanation: alpha particles are stopped by paper or a few centimeters of air, and beta particles are stopped by a thin metal or plastic sheet. Gamma rays (high-energy photons) are much more penetrating and can pass through typical metal sheets unless the metal is very thick or very dense (lead or concrete shielding is needed to reduce gamma).
Explanation: alpha particles are stopped by paper or a few centimeters of air, and beta particles are stopped by a thin metal or plastic sheet. Gamma rays (high-energy photons) are much more penetrating and can pass through typical metal sheets unless the metal is very thick or very dense (lead or concrete shielding is needed to reduce gamma).
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