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.)
Answer
A
None, because the wall will block the radiation.
B
The radiation will travel through the person’s body.
C
None, because the radiation will bounce off the person’s body.
D
The radiation will be totally absorbed by the person’s body.