The wave nature of electron is verified by

Options

A. de - Broglie
B. Davisson and Germer
C. Rutherford
D. All of these

Answer

To solve the question regarding how the wave nature of the electron is verified, we can break it down into a step-by-step explanation based on the Davidson and Germer experiment.

### Step-by-Step Solution:

1. **Introduction to the Experiment**: The wave nature of electrons was verified through the experiment conducted by Clinton Davisson and Lester Germer in the 1920s. They aimed to demonstrate that electrons exhibit wave-like behavior.

**Hint**: Remember the names of the scientists involved in this experiment.

2. **Setup of the Experiment**: In the experiment, a beam of electrons was generated from an electron gun. This beam was directed towards a nickel metal target. The electrons were accelerated by applying a potential difference.

**Hint**: Consider the components of the experimental setup: electron source, metal target, and applied voltage.

3. **Interaction with the Metal Surface**: When the electron beam struck the nickel surface, the electrons interacted with the atoms in the metal. This interaction caused the electrons to be diffracted, similar to how light waves are diffracted when they pass through a slit.

**Hint**: Think about how diffraction is a key concept in wave behavior.

4. **Detection of Diffracted Electrons**: A detector was placed to measure the intensity of the diffracted electrons at various angles. The results showed a pattern that depended on the angle of diffraction, which is characteristic of wave behavior.

**Hint**: Focus on the role of the detector and what it measures.

5. **Intensity vs. Voltage Relationship**: The experiment produced a graph showing the relationship between the intensity of the detected electrons and the applied voltage. This relationship indicated that the electrons behaved like waves, as they produced interference patterns.

**Hint**: Recall how wave interference leads to variations in intensity.

6. **Conclusion**: The results of the Davisson-Germer experiment provided strong evidence for the wave nature of electrons. This was a significant confirmation of Louis de Broglie's hypothesis that particles like electrons can exhibit wave-like properties.

**Hint**: Link the experiment's findings back to de Broglie's theory of wave-particle duality.

### Final Answer:
The wave nature of the electron is verified by the Davisson-Germer experiment.