Question

Nuclear–Fission is best explained by:

• A. Liquid droplet theory
• B. Yukawa \(\pi\)-meson theory
• C. Independent particle model of the nucleus
• D. Proton-proton cycle

Answer 1

The Correct Option is A

The question asks about the theory that best explains nuclear fission. Let's analyze each option to determine the most appropriate explanation:

1. Liquid droplet theory: This theory was proposed by Niels Bohr and John Archibald Wheeler. It describes the nucleus of an atom as a liquid drop, and this analogy helps to understand nuclear phenomena such as fission. According to this theory, nuclear fission can be likened to the splitting of a water droplet due to instability. This instability can be caused by external forces, similar to how a neutron induces fission in a heavy nucleus. This analogy accurately describes the shape deformation and division of the nucleus during fission. Therefore, nuclear fission is best explained by the Liquid droplet theory.
2. Yukawa \(\pi\)-meson theory: This theory is more related to nuclear forces and interactions between nucleons within the nucleus, rather than explaining nuclear fission specifically.
3. Independent particle model of the nucleus: This model treats nucleons as moving independently in potential well created by other nucleons. It doesn't effectively explain the process and occurrence of nuclear fission.
4. Proton-proton cycle: This is a process that explains how stars like the sun generate energy through nuclear fusion, not fission. Thus, it is irrelevant to the explanation of nuclear fission.

Based on these explanations, the correct answer is Liquid droplet theory, as it provides the best analogy for understanding how nuclear fission occurs.