Free Nuclear Physics MCQs with Answers
1,254 Nuclear Physics MCQs from Physics, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Atomic nuclei contain protons and neutrons, with nuclear size, mass defect and binding energy describing their stability. The work covers alpha, beta and gamma decay, decay equations, half-life and decay rate, along with radiation safety and medical applications such as imaging, radiotherapy and tracers.
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1,254 questions · page 27 of 63
- A. 1.66 x 10^18 kg
- B. 1.66 x 10^-19 kg
- C. 1.66 x 10^-27 kg
- D. 1.66 x 10^27 kg
Explanation: Explanation for this question will be added soon!
Correct answer: 1.66 x 10^-27 kg- A. Roentgen
- B. Gray
- C. Rem
- D. Curie
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Correct answer: Gray- A. Becquerels
- B. Gray
- C. Rem
- D. Roentgen
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Correct answer: Roentgen- A. Roentgen
- B. Curie
- C. Gray
- D. Rem
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Correct answer: Gray- A. 3
- B. 2
- C. 5
- D. 4
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Correct answer: 4- A. Energy is released
- B. Energy is absorbed
- C. Mass is increased due to energy absorption
- D. Mass is reduced due to energy released
Explanation: Explanation for this question will be added soon!
Correct answer: Energy is released- A. Meson
- B. Bargon
- C. Photon
- D. Proton
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Correct answer: Meson- A. 1 isotope
- B. 2 isotope
- C. 3 isotope
- D. 4 isotope
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Correct answer: 3 isotope- A. 1 MeV
- B. 2 MeV
- C. 5 MeV
- D. 8 MeV
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Correct answer: 1 MeV- A. α-particles
- B. β-particles
- C. γ-rays
- D. All
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Correct answer: α-particles- A. Loss of hair
- B. Ulceration
- C. Drop of white blood cells
- D. All
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Correct answer: All- A. 5
- B. 5 x 10^-2
- C. 500
- D. 20
Explanation: The absorbed dose of radiation is equal to the radiation energy divided by mass, which equals 10/2= 5 J/kg in this case.
Correct answer: 500- A. The atomic number increases by 1, and the mass number remains unchanged.
- B. The atomic number increases by 1, and the mass number decreases by 4.
- C. The atomic number increases by 1, and the mass number increases by 2.
- D. The atomic number increases by 2, and the mass number increases by 4.
- E. The atomic number decreases by 2, and the mass number decreases by 4.
Explanation: Alpha emission decreases mass number by 4 and atomic number by 2 for each emitted alpha particle.
Correct answer: The atomic number decreases by 2, and the mass number decreases by 4.- A. GM tube
- B. Radar
- C. Wilson cloud chamber
- D. Both A and C
Explanation: The Geiger-Mueller (GM) detector is a common portable instrument choice for a general laboratory radioactive material survey.
Correct answer: GM tube- A. 10 mg
- B. 5 mg
- C. 2.5 mg
- D. 1.25 mg
Explanation: After a single half-life, the substance becomes half of its original mass.
Correct answer: 5 mg- A. Amount of element present
- B. Pressure
- C. Temperature
- D. None of the above options are correct
Explanation: The half-life of a substance doesn't depend upon the amount, temperature, and pressure.
Correct answer: None of the above options are correct- A. absorb low amount of energy
- B. absorb high amount of energy
- C. reduce their binding energy nucleon
- D. increase their binding energy per nucleon
Explanation: Maximum binding energy is achieved around Z = 50 (Iron is close to peak at Z = 56).
Correct answer: increase their binding energy per nucleon- A. Atomic number only
- B. Mass number only
- C. Atomic number and mass both
- D. Neither atomic number nor mass number
Explanation: The chemical properties of an atom depend upon the atomic number. From atomic numbers we can get valence electrons that determine the…
Correct answer: Atomic number only- A. Isomer
- B. Isobar
- C. Isotope
- D. Isotones
Explanation: C is the answer as the atomic number is the proton number and the mass number is the nucleon number.
Correct answer: Isotope- A. 1H1 and 2H1
- B. 30H15 and 30Si14
- C. 12C6, 16O8
- D. 40CI, 40Ar
Explanation: Isobars are atomic species that have the same mass number (A), but a different atomic number (Z). This can only be seen in option D.
Correct answer: 40CI, 40Ar