What is the definition of luminance in relation to light?

Luminance is defined as the amount of light that passes through, is emitted, or reflected from a particular area. This definition focuses on how much light is perceived by the human eye from a specific surface, and it takes into account both the intensity of the light and the area from which it emanates. In practical terms, luminance is an important concept in various fields, including photography, video production, and display technology, where understanding how light interacts with surfaces is crucial for achieving the desired visual outcomes.

The other options do not relate to the concept of luminance at all. The references to connectors and oscilloscopes pertain to electrical and electronic components, which do not involve the principles of light or visual perception. Thus, they do not capture the essence of luminance as it relates to the behavior and measurement of light.