What is the nature of light?
Explanation
The nature of light is one of the most fundamental topics in physics. Light cannot be explained by wave nature alone. Wave theory explains reflection refraction interference and diffraction but FAILS to explain photoelectric effect and Compton effect. Particle nature alone cannot explain interference diffraction and polarization which require wave properties. Light has dual nature meaning it behaves as both a wave and a particle (photon) depending on the experiment. Wave nature explains: reflection refraction interference diffraction polarization. Particle nature explains: photoelectric effect Compton effect pair production. This wave-particle duality was established through work of Maxwell (EM wave theory) Einstein (photoelectric effect photon theory) and de Broglie (matter waves). Light definitely has measurable wave and particle properties. Saying it has neither nature would contradict all of modern physics including the technology behind lasers solar cells and fibre optics.