Question

Which one has the least penetrating power?
A. alpha radiation
B. beta radiation
C. gamma radiation
D. can’t say

Answer 1

Hint – The bigger the particle is, the probability of its collision with another particle increases. Knowing the size of the particle you will get the right answer.

Complete answer:
The tendency of radioactivity to pass through the material is called the ability to penetrate. The ability to penetrate depends on the thickness of the radioactive particle. Alpha particles are the largest, beta particles are a lot smaller, and Gamma rays don't have any mass. The heavier the particle, the more likely it is to collide with the atoms of the material. The collision is going to hinder the

The particle is moving through the material.

An alpha particle is a fast-moving packet containing two protons and two neutrons (a helium nucleus).

Alpha particles bear a charge of +2 and interact strongly with matter. Generated during alpha decay, alpha particles can fly just a few inches through the air and can be easily stopped by a sheet of paper.

A beta particle, also known as gamma ray or gamma ray, is a high-energy, high-speed electron or positron released by the radioactive decay of the atomic nucleus during the process of beta decay. There are two types of beta decay, beta-decay and beta-decay, which contain electrons and positrons, respectively.

Gamma ray, or gamma ray, is a penetrating nuclear radiation resulting from the radioactive decay of atomic nuclei. This consists of the shortest wavelength of electromagnetic waves, providing the maximum photon energy.

Hence, the correct option is A.

Note – To solve this problem you can use elimination of options to get the right answer. This is one of the best methods for single choice correct options only if you know something about other options. Here we see that gamma and beta particles are eliminated since they are smaller than ionized helium atoms which is nothing but an alpha particle. Therefore we can say here that the alpha particle is the right answer.