Fissions reaction can be produced in U-238 by
Correct answer: D. All of these
- A. Fast neutron
- B. Slow neutron
- C. Thermal neutron
- D. All of these
Explanation
Fast neutrons: Neutrons with high kinetic energy (around 10 MeV) can induce fission in 238U. However, the probability of this happening is much lower compared to slow neutrons.Slow neutrons: Neutrons with low kinetic energy (around 0.025 eV) are much more effective in inducing fission in 238U. This is because they have a higher chance of being captured by the nucleus and causing it to become unstable and split.Thermal neutrons: Thermal neutrons are slow neutrons that are in thermal equilibrium with their surroundings. They have the same average kinetic energy as the surrounding atoms and molecules at a specific temperature. Thermal neutrons are the most efficient at inducing fission in 238U.Therefore, 238U can undergo fission reactions with fast neutrons, slow neutrons, and thermal neutrons, making option d the correct answer
Last updated
About Nuclear Physics
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.
Practise Nuclear Physics
1,254 free Nuclear Physics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Physics questions like this
Physics is on 13 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.