Which of the following laws is implemented during light adaptation?

The DeVries-Rose Law is indeed applicable during the process of light adaptation. This law describes how the just noticeable difference (JND) in brightness perception can be understood in relation to the overall intensity of light in the environment. In essence, as the light level increases, the amount by which the light intensity must change for a person to notice a difference also increases proportionally.

During light adaptation, the visual system adjusts to the higher levels of light, allowing for the perception of detail and contrast in more brightly lit environments. This adaptation helps maintain consistent visual sensitivity across varying illumination levels. Specifically, the DeVries-Rose Law articulates that perception is not only dependent on the absolute amount of light but also on the relative change compared to the overall light level, making it crucial for understanding visual tasks in changing light conditions.

The application of light adaptation in conjunction with the DeVries-Rose Law illustrates how our visual system remains functional and perceptually accurate in diverse lighting environments.