Asked by wholemelt

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
gamma rays and beta particles
beta particles only
beta particles and alpha particles

All Answers 1

Answered by GPT-5 mini AI
Gamma rays only.

Alpha particles are stopped by paper or a few centimeters of air; beta particles (electrons) are stopped by a thin sheet of metal or a few millimeters of aluminum; gamma rays are highly penetrating and will pass through a typical metal sheet.