The wave nature of light was proposed by

Explanation

The correct answer is Huygen. Christiaan Huygens proposed the wave theory of light, which describes light as a wave phenomenon. This was a major advancement in the understanding of light, countering Newton's particle theory. Thomas Young's experiments later provided supporting evidence for the wave nature of light, but he did not propose it. Fresnel expanded on Huygens' theory with his work on diffraction, further strengthening the wave theory. Newton, on the other hand, supported the corpuscular theory, which viewed light as composed of particles, not waves.