A. a transistor
B. an atomic pile
C. an electron gun
D. a Wilson cloud chamber
✅ The correct answer is option B.
Radioactive substances can be produced readily in an atomic pile. Radioactive substances are atoms that decay naturally. They can give off alpha particles, beta particles and gamma radiation. Unlike X-ray sources they cannot be turned off, so their control is more difficult.
Radioactive substances can be produced readily in an atomic pile. Radioactive substances are atoms that decay naturally. They can give off alpha particles, beta particles and gamma radiation. Unlike X-ray sources they cannot be turned off, so their control is more difficult.