A-Level Physics Question Analysis Topic: Physics - Nuclear Reaction
Exam Question:
Explain the principle and working of a nuclear reactor with the help of a labelled diagram.
Answer:
For A-Level Physics, you should know:
A nuclear reactor operates on the premise that a controlled chain reaction of uranium 238 U that has been enriched with 235 U will provide a significant quantity of energy. By utilizing a moderator to convert fission neutrons into thermal neutrons and inserting rods that can absorb neutrons and use them to maintain the reaction rate, the controlled chain is made possible.
Working:
The fuel utilized most frequently is 235 U, which is packed inside a cylindrical rod of aluminum.
D2O heavy water, salt water, and graphite blocks are the moderators used.
By absorbing the neutrons released during the nuclear reaction, control rods made of materials like beryllium and cadmium are employed to stop the chain reaction.
To dissipate heat, cold water is sent through the water pipelines that surround the nuclear reactor.
Work hard for your A-Level Physics examination!
End of analysis. Great!
