Question

The isotope that emit these radiations are used as radioactive tracers in medical science.

• A. $\beta$-radiations
• B. $\gamma$-radiations
• C. $\alpha$-radiations
• D. All of the above

Answer 1

The correct option is B $\gamma$-radiations

$\gamma$-radiations emitted by radio isotopes are used as radioactive tracers in medical science.
$\gamma$-being EM radiations has more penetrating power than $a$ and $b$ particles and are unaffected by electric and magnetic fields.