light may be considered to travel as a ? or a ?

Light may be considered to travel as a particle or a wave. This is known as the dual nature of light. The wave theory of light, proposed by scientists such as Christiaan Huygens and James Clerk Maxwell, describes light as an electromagnetic wave. It explains phenomena like interference, diffraction, and polarization. On the other hand, the particle theory of light, proposed by Albert Einstein and others, describes light as a stream of tiny particles called photons. This theory helps explain phenomena like the photoelectric effect and the interaction of light with matter. Both theories have been experimentally confirmed, so light can be considered to exhibit both particle-like and wave-like behavior.