Newton’s theory of light:
visible light is a steam of particles called corpuscles
Huygen’s theory of light:
‘Wave Theory of Light’ explains diffraction & refraction.
Huygen’s wavelets
Young’s theory of light:
double-slit experiment. Proof of light behaving as a wave (constructive & destructive interference)
Maxwell’s theory of light:
electric & magnetic fields obeyed the wave equation. him & Hertz discovered EM spectrum
Einstein’s theory of light:
light behaves as a particle, photoelectric effect, photons
discovery by scientists following Einstein about light:
wave-particle duality