|
A. |
energetic neutrons |
|
Alpha
particles can be stopped by a few inches of air.
Beta particles can be stopped by a few sheets of metal foil.
Energetic neutrons and gamma rays require substantial masses such as six
feet of dirt.
Of importance, the easiest stopped does the
most damage if it gets to your cells and vice versus the hardest to stop
does the least damage because most of it passes through you.
The Correct Answer is B. |
