Physics Quiz on Radioactivity for IIT JEE, NEET, Medical & Engineering Exam 2021

Physics Quiz on Radioactivity

Physics Quiz on Radioactivity: Previous trends reveal that NEET aspirants find Physics as the most challenging section amongst the other sections. But most of them fail to decipher the reason behind this. This particularly can be as the candidates taking up this examination are predominantly medical aspirants with their subject of interest being Biology. Also, sections like Physics are more on theories, laws, numerical as opposed to Biology which is more of fact-based, life sciences and comprising of substantial explanations. In this post we are providing you Physics quiz on Radioactivity.

Physics Quiz on Radioactivity

Q1. Three types of radioactive elements are emitted when unstable nuclei undergo radioactive decay. Which of the following is not one of them?
a) Beta
b) Gamma
c) Alpha
d) Delta

Q2. When two atomic nuclei combine it is called as ________.
a) Nuclear fission
b) Nuclear decay
c) Nuclear fusion
d) Chain reaction

Q3. A nuclide of the element plutonium ₉₄ Pu ²⁴². What is the number of neutrons in its nucleus?
a) 256
b) 148
c) 196
d) 128

Q4. The number of protons or atomic number is reduced to 2 by which form of radioactive decay?
a) Alpha decay
b) Beta decay
c) Gamma decay
d) None of the above

Q5. Isotopes of an element have a different number of _______.
a) Atoms
b) Electron
c) Neutron
d) Proton

Q6. The neutral atoms of all isotopes of the same element contain the same number of __________.
a) Electrons
b) Masses
c) Neutrons
d) Mass numbers

Q7. Which statement is true for all three types of radioactive emission?
a) They emit light
b) They ionise gases
c) They are deflected by electric fields
d) They are completely absorbed by a thin aluminium sheet

Q8. Helium nuclei particles are called ______.
a) Alpha particles
b) Beta particles
c) Gamma particles
d) No particles that are helium nuclei

Q9. The atomic number is not changed by which type of radioactive decay?
a) Beta
b) Gamma
c) Alpha
d) The atomic number is affected by all forms of radioactive decay

Q10. A nuclear fission reaction becoming self-sustaining depends on __________.
a) Energy
b) Neutrons
c) Electrons
d) Protons

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