Nuclear Physics MCQ Multiple Choice Questions Answers | Quiz for Practice

Q: 2. An isotope with a high Binding Energy per nucleon:

Correct Answer is: is very stable .

Q: 3. An unknown chemical element is presented by the following formula: AXZ. What is the name of index A?

Correct Answer is: Atomic mass number

Q: 4. An unknown chemical element is presented by the following formula: AXZ. What is the name of index Z?

Correct Answer is: Atomic number

Q: 6. Binding energy is:

Correct Answer is: the amount of energy required to break a nucleus apart into protons and neutrons.

Q: 11. Isotopes of an element:

Correct Answer is: have the same number of protons and electrons, but a different number of neutrons.

Q: 12. The atomic mass number is equivalent to which of the following?

Correct Answer is: The number of nucleons in the atom

Q: 13. The atomic number is equivalent to which of the following?

Correct Answer is: The number of protons in the atom.

Q: 16. What force is responsible for the radioactive decay of the nucleus?

Correct Answer is: Weak Nuclear force

Q: 17. What law did Ernest Rutherford use to estimate the size of the nucleus?

Correct Answer is: Conservation of energy

Q: 18. When a nucleus is divided into its constituents, energy is:

Correct Answer is: absorbed by the nucleus which then breaks it apart.

Dive into the world of Nuclear Physics with our multiple-choice questions (MCQs). Ideal for students and exam aspirants, these questions help solidify your understanding and prepare for various assessments.

About Nuclear Physics MCQ Questions

Nuclear Physics MCQs cover essential topics such as nuclear structure, radioactive decay, nuclear reactions, and more. These questions are designed to test your knowledge and understanding of the fundamental principles and applications in the field of nuclear physics.

Why Practice Nuclear Physics Objective Questions?

Practicing Nuclear Physics MCQs is crucial for several reasons. It helps you prepare for school and college exams, enhances your problem-solving skills, and boosts your confidence for competitive exams and job interviews. Regular practice ensures a thorough understanding of key concepts and improves your ability to apply them in real-world scenarios.

Who Should Use These MCQs?

Students preparing for school or college exams
Competitive exam aspirants
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Nuclear Physics MCQ Questions for Practice

1. A reaction that releases more energy than is put into it is called:

endothermic
exothermic
nuclear
chemical

2. An isotope with a high Binding Energy per nucleon:

will decay in a short period of time.
is very unstable.
is very stable .
has very few electrons.

3. An unknown chemical element is presented by the following formula: ^AX_Z. What is the name of index A?

Atomic mass number
Atomic number
Principle quantum number
Orbital quantum number

4. An unknown chemical element is presented by the following formula: ^AX_Z. What is the name of index Z?

Atomic mass number
Atomic number
Principle quantum number
Orbital quantum number

5. A 100 g sample of a radioactive element has a half-life of 5 days. How many grams of radioactive material will remain after 15 days?

100 g
50 g
25 g
12.5 g

6. Binding energy is:

the amount of energy required to break a nucleus apart into protons and neutrons.
the amount of energy required to break a nucleus apart into protons and electrons.
the amount of energy required to break a nucleus apart into electrons and neutrons.
the amount of energy released when neutrons change energy levels.

7. How many electrons are in the ⁶C₁₂ atom?

8. How many neutrons are in the ²³Na₁₁ atom?

9. How many nucleons are in the ²⁰Ne₁₀ atom?

10. How many protons are in the ¹⁴N₇ atom?

11. Isotopes of an element:

have the same number of protons and electrons, but a different number of neutrons.
have the same number of protons and neutrons, but a different number of electrons.
have different number of protons.
have different number of electrons.

12. The atomic mass number is equivalent to which of the following?

The number of neutrons in the atom.
The number of protons in the atom.
The number of nucleons in the atom
The number of alpha-particles in the atom.

13. The atomic number is equivalent to which of the following?

The number of neutrons in the atom.
The number of protons in the atom.
The number of nucleons in the atom.
The number of alpha-particles in the atom.

14. The following reaction: ¹n₊₀ + ²³⁵U₉₂ -> ¹⁴¹Ba₅₆ + ⁹²Kr₃₆ + 3¹n₀ is called:

Fusion
Fission
alpha decay
beta decay

15. The following reaction: ²H₁ + ³H₊₁ -> ⁴He₂ + ¹n₀ is called:

Fusion
Fission
alpha decay
beta decay

16. What force is responsible for the radioactive decay of the nucleus?

Gravitational force
Weak Nuclear force
Strong Nuclear force
Electromagnetic force

17. What law did Ernest Rutherford use to estimate the size of the nucleus?

Conservation of nucleon number
Conservation of angular momentum
Conservation of linear momentum
Conservation of energy

18. When a nucleus is divided into its constituents, energy is:

created from nothing.
destroyed into nothing.
transformed into visible light.
absorbed by the nucleus which then breaks it apart.

19. When nucleons form a stable nucleus, binding energy is:

created from nothing.
destroyed into nothing.
transformed into visible light.
released as high energy photons or particles.

20. Which of the following about the gamma ray is true?

It carries a positive charge.
It carries a negative charge.
It can be deflected by a magnetic field.
It has zero rest mass and a neutral charge.

21. Which of the following about the nuclear force is true?

It is an attractive force between electrons and protons in an atom.
It is an attractive force between electrons and neutrons in an atom.
It is much weaker than the electromagnetic force.
It is a strong, short-range, attractive force between the nucleons.

22. Which of the following is correct for the number of neutrons in the nucleus?

N = A â€“Z
N = Z â€“ A
N = Z +A
N = Z

23. Which of the following is the Beta particle?

⁰e₊₁
⁰e_-1
¹n₀
¹H₁

24. Which of the following is the Beta-particle?

⁰e₊₁
⁰e_-1
¹n₀
¹H₁

25. Which of the following particles has the smallest mass?

Proton
Electron
Neutron
Nucleus

26. Which of the following statements about the mass of an atom is true?

It is evenly divided between the protons and the orbiting electrons.
It is evenly divided between the nucleons and the orbiting electrons.
It is concentrated in the electron cloud.
It is concentrated in the nucleus.

27. Which type of radiation is stopped by a sheet of paper?

alpha particle
beta particle
Gamma ray
X-ray

28. Why are nuclear energy levels more complex than electron energy levels?

Nuclear energy levels depend only on attractive forces.
Nuclear energy levels depend on attractive and repulsive forces.
Nuclear energy levels are an order of one hundred times as great as electron energy levels.
Electron energy levels depend on the interaction between neutrons and electrons.

29. Why do heavier nuclei have a greater ratio of neutrons to protons than lighter nuclei?

to add more nucleons so that the binding energy is greater.
to provide a greater weak nuclear force.
to provide more attractive electromagnetic force.
to provide more attractive strong nuclear force to balance the repulsive electromagnetic force.