Diffraction results when light is scattered from a regular array of points or lines.

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Quizplus · Accepted Answer

Diffraction is a phenomena that occurs when light encounters an obstacle or aperture with dimensions comparable to its wavelength. When this happens, the light waves deviate from a straight path and undergo interference patterns that depend on the geometry of the obstacle/aperture. When the obstacle/aperture consists of a regular array of points or lines, such as in a diffraction grating, the resulting interference patterns can be used for a variety of applications in spectroscopy, imaging, and optical communications. Therefore, the statement that "Diffraction results when light is scattered from a regular array of points or lines" is true.

Diffraction Results When Light Is Scattered from a Regular Array