Physics · Science General

Nuclear Physics and Energy

1,324 Questions

Access a comprehensive set of questions on nuclear physics, reactor mechanisms, and atomic energy. Topics include nuclear fission, plasma generation, and radiation control. These physics questions form a core part of the syllabus for various engineering and civil service exams.

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Nuclear Physics and Energy Questions

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What are the three pillars of the NPT?

  1. Disarmament, nonproliferation, and peaceful uses of nuclear technology

  2. Nuclear-weapon-free zones, nuclear power, and regional stability

  3. Strategic bombers, ICBMs, and SLBMs

  4. Nuclear, chemical, and biological weapons
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

  • The Non-Proliferation Treaty or NPT has three pillars :  

  1. Nuclear Disarmament: Includes disarmament and dismantling military nuclear programs.
  2. Non-proliferation: Non nuclear weapon states agree to avoid developing nuclear technology while NWS agree not to spread the technology.
  3. Peaceful Uses Of Nuclear Technology : Using nuclear energy for peaceful purposes and not for war and its nuances. 

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An atom bomb is based on the principle of

  1. nuclear bomb

  2. nuclear fusion

  3. the liquid drop model

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A

Atom bomb is based on the principles of nuclear bomb. When the nuclear bomb detonated gamma rays and X-rays emitted it to thermonuclear temperatures. The ensuing fission reaction creates enormous numbers of high speed neutrons, which can then induce fission in materials not normally prone to it, such as depleted uranium. 

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Which is used as 'coolants' in a nuclear power station?

  1. water and nitrogen

  2. liquid sodium and carbon dioxide

  3. liquid ammonia and carbon monoxide

  4. heavy water and uranium oxide
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Coolant is used to remove the heat produced from the reactor core. This heat is then transferred to the electrical generators or the environment. Water, liquid sodium, helium and carbon dioxide are most commonly used coolants.

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Which of the following will produce more energy in a short time?

  1. Nuclear fission

  2. Nuclear fusion

  3. Both will produce the same amount of energy

  4. Nothing can be decided
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Nuclear fusion releases significantly more energy per unit mass of fuel compared to nuclear fission, which is why it is the process that powers the sun.

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The energy released due to loss in mass during the process of nuclear fission and fusion is called:

  1. hydro energy

  2. electrical energy

  3. nuclear energy

  4. geothermal energy
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The energy released due to a loss in mass during the process of nuclear fission and fusion is called nuclear energy. In both these processes, the loss in mass gets converted into energy in accordance with Einstein's mass-energy relation $E=mc^2$.

Multiple choice physics towards green energy electricity from nuclear energy nuclear power nuclear energy

What is the biggest advantage of nuclear energy?

  1. It is clean.

  2. Huge amount of energy is produced.

  3. The radioactive emissions from a nuclear power plant are healthy.

  4. Nuclear power plant can be easily set up in urban areas.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The yield of nuclear energy is enormous and hence it has extraordinary potential as an energy source.