In a nuclear fission reaction, which of the following is used in controlled conditions?
Correct answer: B. Control rod
- A. Moderators
- B. Control rod
- C. Protons
- D. Heavy water
Explanation
n a controlled nuclear fission reaction, control rods are used to regulate the reaction.Nuclear fission is a process where heavy atomic nuclei, such as uranium or plutonium, are split into lighter nuclei. This splitting process releases a large amount of energy, as well as additional neutrons that can sustain the chain reaction.To control the nuclear fission reaction, control rods made of materials that easily absorb neutrons, such as boron or cadmium, are inserted or withdrawn from the reactor core. By adjusting the position of the control rods, the number of neutrons available for the fission process can be regulated, allowing the reaction to be maintained at a controlled rate.
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