Nuclear physics is the branch of physics that is focused on study of atomic nuclei, its constituents, and reactions. Given below are the top ten basic MCQs on nuclear physics.

Nucleus contains:

  1. Protons
  2. Neutrons
  3. Protons & Neutrons
  4. Protons & Electrons

Correct answer: 3. Protons & Neutrons


Mass of proton is:

  1. 1.672622 * 10-27 kg
  2. 1.674927 * 10-27 kg
  3. 9.10938 * 10-31 kg
  4. 8.85672 * 10-28 kg

Correct answer: 1. 1.672622 * 10-27 kg


The Atomic number is:

  1. Number of electrons
  2. Number of neutrons
  3. Number of protons
  4. All of these

Correct answer: 3. Number of protons


The atomic number of helium is:

  1. 1
  2. 2
  3. 3
  4. 4

Correct answer: 2. 2


Isotopes have same

  1. Protons
  2. Neutron
  3. Mass
  4. All of these

Correct answer: 1. Protons


MRI stands for:

  1. Metallic radiations integrated
  2. Metallic resistance imaging
  3. Magnetic resonance imaging
  4. None of these

Correct answer: 3. Magnetic resonance imaging


The proton mass is _________ time larger than electron mass:

  1. 989
  2. 1836
  3. 2598
  4. 2992

Correct answer: 2. 1836


Mass of electron is:

  1. 1.672622 * 10-27 kg
  2. 1.674927 * 10-27 kg
  3. 9.10938 * 10-31 kg
  4. 8.85672 * 10-28 kg

Correct answer: 3. 9.10938 * 10-31 kg


The half-life of a radioactive nuclear is the time required for:

  1. Number of radioactive nuclei to decrease to one half original number
  2. Uranium item to generate energy from half of its total mass
  3. Both of these
  4. None of these

Correct answer: 1. Number of radioactive nuclei to decrease to one half original number


SI unit of absorbed dose is:

  1. Black
  2. Gray
  3. Ohms
  4. RBE

Correct answer: 2. Gray