Determine the product and show the mechanism of the following transformation. 
Definitions:
Weber's Law
A principle in psychology stating that the just-noticeable difference in a stimulus is proportional to the magnitude of the initial stimulus.
Amplitude
The height or strength of a wave signal, which in many contexts, reflects the intensity of a phenomenon like sound, light, or electrical signal.
Wavelength
The distance between consecutive crests or troughs in a wave, often used to specify the type of light or radiation.
Brightness
The attribute of visual perception in which a source appears to emit or reflect a high level of light.
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