What is the chain reaction in nuclear energy called?AelectromagneticBblack holeCradiationDfission

Break Down the Problem

1. Identify the key terms in the question.
2. List the possible answers and their relevance to nuclear energy.

Relevant Concepts

1. Fission: A nuclear reaction where the nucleus of an atom splits into two or more smaller nuclei, releasing a significant amount of energy.
2. Radiation: This can refer to various forms of energy emission resulting from nuclear processes, but it is not specifically the process of initiating a chain reaction.
3. Black Hole: Related to astrophysics, not a reaction in nuclear energy.
4. Electromagnetic: This pertains to a force or type of radiation but does not define a nuclear energy reaction.

Analysis and Detail

• The question asks about a specific type of reaction in nuclear energy that leads to a chain reaction.
• The only option that directly describes a process in nuclear energy that can result in a chain reaction is fission.

Verify and Summarize

• Among the options presented, the one that matches the definition of a self-sustaining reaction in nuclear energy is fission. Other options either do not apply or represent different concepts.

Final Answer

D. Fission