The formation of energy bands in solids are in accordance with

Options

A. Heisenberg’s uncertainty principle
B. Bohr’s theory
C. Ohm’s law
D. Rutherford’s atomic model

Explanation

To solve the question regarding the formation of energy bands in solids, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Energy Levels**:
- In isolated atoms, electrons occupy discrete energy levels. These energy levels are quantized, meaning they can only take on certain values.

**Hint**: Remember that quantization refers to the idea that energy levels are not continuous but rather come in specific, fixed amounts.

2. **Transition to Solids**:
- When atoms come together to form a solid, their individual energy levels interact. As a result, the energy levels of the atoms broaden and form what are known as energy bands.

**Hint**: Think about how the close proximity of atoms affects their energy levels when they combine to form a solid.

3. **Bohr's Model**:
- The concept of quantized energy levels originates from the Bohr Theory, which describes how electrons exist in specific orbits around the nucleus of an atom. This theory is fundamental in understanding how energy levels are structured.

**Hint**: Recall that Bohr's model was primarily developed for hydrogen but laid the groundwork for understanding electron behavior in more complex systems.

4. **Identifying the Correct Option**:
- Given the options provided (Hagen-Werner Center, Bohr Theory, Ohm's Law, Food Atomic Model), the Bohr Theory is the most relevant to the concept of energy levels and their quantization in solids.

**Hint**: Eliminate the options that do not relate to atomic structure or energy levels to narrow down your choices.

5. **Conclusion**:
- Therefore, the formation of energy bands in solids is in accordance with the Bohr Theory. The correct answer is option number two.

### Final Answer:
The formation of energy bands in solids are in accordance with the **Bohr Theory**.