Rankers Physics

Nucleus: Practice Problem & Solution

Fusion reaction takes place at high temperature because: (2011 Pre)
Nuclei break up at high temperature
Atoms get ionised at high temperature
Kinetic energy is high enough to overcome the coulomb repulsion between nuclei
Molecules break up at high temperature

Solution Explained:

To solve this problem, we apply the core principles of Nucleus. Understanding the underlying formula is key to arriving at the correct answer below:

For fusion to occur, light nuclei must be brought very close together. A high temperature provides the nuclei with sufficient kinetic energy to overcome their mutual Coulombic repulsion.

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