Which behavior of light describes the spreading of waves around obstacles?

Answer 1

The behavior of light that describes the spreading of waves around obstacles is called diffraction. Diffraction occurs when light waves encounter an obstacle or aperture that is of similar size or smaller than the wavelength of the light. As the waves pass through or around the obstacle, they spread out and bend, resulting in a pattern of interference and produce a characteristic diffraction pattern on a screen or surface beyond the obstacle.