The phenomena that support only the wave theory of light are Diffraction and Interference.
Light or visible light is electromagnetic radiation within the portion of the electromagnetic spectrum that is perceived by the human eye.
The light sometimes acts like a particle and sometimes like a wave, yet the diffraction and interference are proof of the light's wave nature.
First of all, as a definition, interference is an effect caused by the superposition of two systems of waves (from two different sources). (As an example, the interference -distortion- in radio waves)
Diffraction, by the other hand, refers to several events that occur when a wave meets an obstacle. (usually described as bending of waves around obstacles like the water waves- and in other cases as the dissemination of waves, once they passed small openings)
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Answer:
interference, diffraction, scattering, dispersion, polarisation etc.Explanation: edge
