does light travel in wave shape
Answers
Most waves require a medium to travel in. ... No water, no waves. Because light consists of photons, however, it can travel through space like a stream of tiny particles. The photons actually travel more quickly through space and lose less energy on the way, because there are no molecules in the way to slow them down.
The mathematical descriptions of waves are very well understood for waves of many types. These include water waves, sound waves, string waves, etc. When James Clerk Maxwell combined the mathematical laws that govern electricity and magnetism--Gauss's Law of electricity, Gauss's Law of magnetism, Faraday's Law, and Ampere's Law--he discovered that these laws gave rise to a dual set of wave equations that are identical in form to wave equations for mechanical waves already known.
If electromagnetic radiation did not propagate as waves, then it would have meant that the more than century of research in electricity and magnetism was fatally flawed on a fundamental level. However, the wave nature of electromagnetic radiation propagation is confirmed continually everyday. The Young's Double Slit experiment is a staple of first-year physics lab classes. The diffraction grating is critical to many optical instruments. The designs of radio antennae, wave guides, and resonant cavities are based on the wave properties of electromagnetic waves.
The inescapable conclusion is that electromagnetic radiation of which light is a tiny part propagates as waves. There is zero (0) doubt that this is the case.