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Which rays contain (+ve) charged particles : -
A
$\alpha$-rays
B
$\beta$-rays
C
$\gamma$-rays
D
X-rays
Detailed Solution
$\alpha$-rays are streams of helium nuclei, ${}^{4}_{2}He^{2+}$, each carrying a charge of +2e. So they are positively charged.
$\beta$-rays are fast electrons (negatively charged; $\beta^+$ positrons are a separate case).
$\gamma$-rays and X-rays are electromagnetic radiation and carry no charge.
So $\alpha$-rays contain positively charged particles.
$\beta$-rays are fast electrons (negatively charged; $\beta^+$ positrons are a separate case).
$\gamma$-rays and X-rays are electromagnetic radiation and carry no charge.
So $\alpha$-rays contain positively charged particles.