Dual Nature of Matter & Radiation explains a key idea in modern physics. Scientists observe strange behavior in light and particles.
First, light acts like a wave. It shows interference and diffraction patterns. Therefore, experiments like Young’s double-slit confirm wave nature clearly.
However, light also behaves like particles. The photoelectric effect proves this fact. Electrons eject from metal surfaces instantly when light hits them. Thus, light carries energy in discrete packets called photons.
Moreover, Einstein explained the photoelectric effect successfully. He linked photon energy to frequency using E = hν. As a result, this equation solved the puzzle completely.
Additionally, matter shows wave-like properties. Louis de Broglie proposed this bold idea. He suggested every moving particle has a wavelength λ = h/p. Consequently, electrons and other particles diffract like waves.
Furthermore, Davisson-Germer experiment confirmed de Broglie’s hypothesis. Electrons produced diffraction patterns on a nickel crystal. Therefore, matter waves became an accepted reality.
Next, the uncertainty principle adds another layer. Heisenberg showed position and momentum cannot both be known precisely. Thus, wave-particle duality becomes even more fundamental.
In short, neither pure wave nor pure particle describes reality fully. Light and matter switch behaviors depending on the experiment. Overall, dual nature forms the foundation of quantum mechanics.
This concept helps explain atoms, lasers, electron microscopes, and many modern technologies.