JAMB - Physics (1980 - No. 41)
Natural radioactivity consists of the emission of
\( \alpha \) -particle and \( \beta \) rays
\( \alpha \) -particle and X-rays
\( \gamma \)-rays and X-rays
\( \alpha \)-particle, \( \beta \) rays and \( \gamma \)-rays
\( \alpha \) -particle, \( \beta \) rays, \( \gamma \)-rays and X-rays
ব্যাখ্যা
Natural radioactivity is the radioactivity found in nature, such as uranium, thorium ores, and natural nuclear fuels. It consists of the emission of radiations such as α-particles, β-rays, and γ-rays