Which of the following types of radiation can penetrate through paper but not through wood?

Alpha rays

Beta rays

Gamma rays

Proton rays

Question

Which of the following types of radiation can penetrate through paper but not through wood?

 Alpha rays

 Beta rays

 Gamma rays

 Proton rays

anonymous · Answer

@aaronq

anonymous · Answer

i know its not C, and ive never heard of D

aaronq · Answer

i think by rays, they mean "streams of particles".

Im pretty sure it's $\alpha$ particles/rays

abmon98 · Answer

Alpha radiation
Alpha radiation is the least penetrating. It can be stopped (or absorbed) by a sheet of paper.
Beta radiation
Beta radiation can penetrate air and paper. It can be stopped by a thin sheet of aluminium.
Gamma radiation
amma radiation is the most penetrating. Even small levels can penetrate air, paper or thin metal. Higher levels can only be stopped by many centimetres of lead, or many metres of concrete.

aaronq · Answer

^then beta it is!

anonymous · Answer

Ty sm! This was  correct!