Question

A radioactive source emits types of radiations. Name the radiation which has the highest ionizing power.

• A. $\alpha$
• B. $\gamma$
• C. $\beta$
• D. none of these

Answer 1

The correct option is A $\alpha$

Radiation can be alpha and beta particles, but out of these, alpha particles have very high ionising power, the biggest mass and charge of the three radiations.