The wave nature of electrons was first proved by whom ?

Correct option is C

The correct answer is (C) Davison and Germer experiment

Explanation:

The wave nature of electrons was first proven by the Davison and Germer experiment in 1927. This experiment demonstrated that electrons, when passed through a crystal, showed diffraction patterns similar to the behavior of light waves, thus proving that electrons exhibit wave-like properties.

1. The Davison and Germer experiment involved firing electrons at a crystal and observing the resulting diffraction patterns.

2. The diffraction of electrons confirmed the wave-particle duality of matter, a fundamental concept in quantum mechanics.

3. This discovery was key in the development of quantum theory, showing that particles such as electrons can behave as both particles and waves.

4. The experiment provided experimental evidence for Louis de Broglie's hypothesis that particles have associated wavelengths.

5. The results of the experiment were crucial in understanding the behavior of subatomic particles in quantum mechanics.

• Photoelectric effect : The photoelectric effect, explained by Albert Einstein, demonstrated the particle nature of light, but it did not prove the wave nature of electrons.

• Double slit experiment : The double-slit experiment, originally conducted with light, is famous for demonstrating the wave-like behavior of light, but it was later extended to electrons in the Davison and Germer experiment.

• Compton effect : The Compton effect confirmed the particle nature of light by showing that photons collide with electrons, but it does not address the wave nature of electrons.