What is the most important application of de Broglie concept ?

Explanation

**Step-by-Step Solution:**

1. **Understanding de Broglie Concept**: The de Broglie hypothesis suggests that particles, such as electrons, exhibit wave-like properties. This means that every moving particle or object has an associated wavelength, which is inversely proportional to its momentum.

2. **Application of de Broglie Concept**: One of the most significant applications of the de Broglie concept is in the development of the electron microscope. The electron microscope utilizes the wave nature of electrons to achieve much higher resolutions than traditional light microscopes.

3. **Construction of Electron Microscope**: In an electron microscope, electrons are accelerated and focused using electromagnetic lenses. The de Broglie wavelength of these electrons is much smaller than that of visible light, allowing for the visualization of much smaller structures at the atomic or molecular level.

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