Which of the following will stop beta particles? a) aluminum foil b) air c) skin d)paper

Answer : The correct option is, (A) Aluminum foil

Explanation :

Penetration power : It is the movement of particles or the ray through an object.  As we know that the more the energy of a particle, the more will be the penetrating power.

The ascending order of the penetration power of alpha rays, beta rays, and gamma rays are:

Alpha rays < Beta rays < Gamma rays

The penetrating power of the alpha, beta and gamma rays varies greatly.  That means,

Hence, Aluminium foil will stop beta particles.

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