The temperature at the core of sun is about

Options

A. 1 million`.^(@)C`
B. 10 million`.^(@)C`
C. `20 million C
D. 100 million `.^(@)C`

Answer

**Step-by-Step Solution:**

1. **Understanding the Core of the Sun**: The core of the Sun is the innermost layer where nuclear fusion occurs. This process is essential for the Sun's energy production.

2. **Temperature Estimation**: The temperature at the core of the Sun is extremely high due to the immense gravitational pressure. This pressure leads to high temperatures necessary for nuclear fusion.

3. **Conversion of Temperature**: The temperature at the core of the Sun is often cited as being around 27 million degrees Fahrenheit. To convert this to Celsius, we can use the formula:
\[ C = (F - 32) \times \frac{5}{9} \]
However, for this context, it's more relevant to know that 27 million degrees Fahrenheit is approximately 15 million degrees Celsius.

4. **Nuclear Fusion Process**: In the core, hydrogen atoms are compressed under high pressure and temperature, leading to their fusion into helium. This process releases a significant amount of energy, contributing to the Sun's heat.

5. **Final Temperature Range**: Based on the information, the core temperature can be approximated to be between 15 to 20 million degrees Celsius.

6. **Choosing the Correct Option**: Given the options provided, the closest and most accurate estimate for the temperature at the core of the Sun is 20 million degrees Celsius.

**Conclusion**: Therefore, the correct answer is option 3: 20 million degrees Celsius.

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