Question

Which one of the following does not consist of charged particles of matter?

• A. $\alpha$ - particles
• B. $\beta$ - rays
• C. $\gamma$ - rays
• D. Anode rays

Answer 1

The correct option is C $\gamma$ - rays

$\gamma$ - raysdoes not consist of charged particles of matter. They are electromagnetic radiations.
$\alpha$ - particles have 2 units of charge and 4 units of mass.
$\beta$ - particles have 1 unit of charge and negligible mass
$\gamma$ - rays do not have any charge.