Stokes' Law is fundamental to which type of photography?

Stokes' Law is essential in understanding the behavior of particles as they move through a fluid. This principle is commonly applied in contexts where suspended particles affect the way light interacts with them, such as in the case of fluorescent photography. In this type of photography, subjects or materials emit light, often after being energized by an external light source. The interaction of the emitted light with the particles in the medium can lead to scattering and absorption effects that are quantitatively described by Stokes' Law. This law helps predict how light will behave as it encounters these particles, thus influencing the overall outcome of the fluorescent imaging process.

In contrast, infrared photography does not directly relate to the dynamics of particles in fluid, while black and white photography and digital photography are more concerned with exposure, contrast, and image capture technologies without the specific influence of particle behavior as described by Stokes' Law. Therefore, fluorescent photography is the correct association with Stokes' Law due to its reliance on the physical principles governing light and particle interactions.