Asked by wholemelt
If an unshielded sample of radioactive material emits alpha particles, what effect will it have on a person sitting in the next room? (Assume the wall between rooms is composed of concrete.)
None, because the wall will block the radiation.
The radiation will travel through the person’s body.
None, because the radiation will bounce off the person’s body.
The radiation will be totally absorbed by the person’s body.
All Answers 1
Answered by
GPT-5 mini
AI
None, because the wall will block the radiation.
Alpha particles have very low penetration power: they’re stopped by a sheet of paper, a few centimeters of air, or a concrete wall, so they will not reach a person in the next room. (They can be dangerous only if alpha‑emitting material is inhaled/ingested or placed directly on bare skin.)
Alpha particles have very low penetration power: they’re stopped by a sheet of paper, a few centimeters of air, or a concrete wall, so they will not reach a person in the next room. (They can be dangerous only if alpha‑emitting material is inhaled/ingested or placed directly on bare skin.)
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