Question

The radioactive isotope used in the treatment of cancer has to be a good source of ________ radiations.

• A. $\beta$
• B. $\alpha$
• C. $\gamma$
• D. $IR$

Answer 1

The correct option is C $\gamma$

X-rays, gamma rays and beta particles are all used in medicine to treat internal organs. X-rays are produced by firing electrons at a metal target and gamma rays are emitted by the nucleus of radioactive atoms. Gamma rays are used to kill cancer cells, to sterilize medical equipment and in radioactive tracers.