Engineering in Kenya

MCQS of Physics About Radioactive Decay

Posted by on May 2, 2018 in Physics | 0 comments

MCQS of Physics  300x292 MCQS of Physics About Radioactive DecayMany MCQS of physics have been asked, and many also have been answered. Here, I discuss the common multiple choice question asked to give an answer to the young physicians.

It is said and it is also true that nuclei decay in an effort to achieve stability. Therefore, an alternative title for this script is Nuclear Decay Processes.

Also, we can title it as methods of attaining stability curve since a nuclear stability curve can be used to show the decay activity.

You may have covered this in high school but bear with us because the treatment here will help use set a scene for the next articles. Here, we follow a phenomenological approach to the topic by unfolding in a fairly easy fashion on what is known about every of the major decay mechanisms.   

Nuclear Decay MCQS of physics

Instead of considering what happens to individual nuclei it is maybe simpler to consider a theoretical nucleus that can undergo several of the major forms of radioactive decay.

Two protons and two neutrons can be emitted together in alpha-decay process. A proton can emit a positron in beta-plus decay process, and that a neutron can release an electron in beta-minus decay process.

Gamma decay process occurs when some energy in form of a photon as well as an electron is attracted into the nucleus and being ejected again. Spontaneous fission occurs when nucleus crack catastrophically in half.

MCQS of physics mostly concentrates on radio decay although other areas of physics are also covered in the multiple choice question.

MCQS of Physics on spontaneous fusion

Spontaneous fusion is a very destructive process which normally occurs among the heavy which split into 2 or 3 fragments and some neutrons.

The new fragments formed are usually radioactive. Nuclear reactors use this occurrence for the production of radioisotopes. It’s also used for nuclear power production and in nuclear weaponry.


MCQS of Physics (Alpha Particle)

In alpha decay process two protons and two neutrons depart the nucleus together in an assembly helium-4 nucleus is actually the alpha particle.

The reason why we can not give it a new name and call it helium nucleus is restricted by the history of discovery of radioactivity.

At the time when these radiations were revealed scientists didn’t know what they really were. They found out that one brand of these radiations had a double positive charge. Iit was not until sometime later that they learnt that they were in actuality nuclei of helium-4.

In the early period of their discovery this type of radiation was given the name alpha rays. These terms were the first three letters of the Greek alphabet. Scientists still call this form of radiation alpha particle for historical purposes. Naming it this way also contributes to the specific jargon of the field and leads outsiders to believe that the theme is quite specialized!

There is also Bête and Gama ray decay in the MCQS of physics which i will cover extensively and comprehensively in my next article.