The temperature required for the process of nuclear fusion is nearly :

Options

A. `1000 K`
B. `10^4 K`
C. `10^5 K`
D. `10^7 K`

Answer

To solve the question regarding the temperature required for the process of nuclear fusion, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Nuclear Fusion**:
- Nuclear fusion is a process where two or more atomic nuclei combine to form a single heavier nucleus, releasing a significant amount of energy in the process. This is the same reaction that powers stars, including our Sun.

2. **Identifying the Challenges**:
- One of the main challenges in achieving nuclear fusion is the electrostatic repulsion between the positively charged nuclei. The nuclei repel each other due to their like charges, making it necessary to overcome this repulsion to allow fusion to occur.

3. **Determining the Required Conditions**:
- To overcome the repulsion between the nuclei, extremely high temperatures are required. These high temperatures provide the nuclei with enough kinetic energy to overcome their electrostatic repulsion.

4. **Finding the Approximate Temperature**:
- The temperature required for nuclear fusion is approximately \(10^7\) Kelvin (10 million Kelvin). This temperature is necessary to provide the energy needed for the nuclei to collide with enough force to fuse.

5. **Conclusion**:
- Therefore, the temperature required for the process of nuclear fusion is nearly \(10^7\) Kelvin.

### Final Answer:
The temperature required for the process of nuclear fusion is nearly \(10^7\) Kelvin.

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