Question

Which electromagnetic radiation is emitted by radioactive substances?

• A. $\gamma$ - rays
• B. Radiowaves
• C. Microwaves
• D. X - rays

Answer 1

The correct option is A $\gamma$ - rays

γ - rays is emitted by radioactive substances

Types of Radioactive Emissions. There are many types of radiation and radioactive emissions. The information we are providing discusses only the four most common types: alpha particles, beta particles, gamma rays, and x rays.

Alpha and beta particles consist of matter, and gamma rays are bursts of energy. The type of radiation emitted depends on the radioactive substance; cesium-137, for example, produces beta and gamma radiation but not alpha particles. Radioactive substances are atoms that decay naturally. They can give off alpha particles, beta particles and gamma radiation.