Answer:
Weber's Law
Step-by-step explanation:
Weber's law: In psychology, the term Weber's law is also referred to as Weber-Fechner law, and is defined as a salient psychological law that quantifies the perception of alteration in a specific stimulus.
Weber's law signifies that any change in a given stimulus will be considered as just noticeable represents a constant ratio of the particular original stimulus.
In the question above, the given phenomenon is best explained in terms of Weber's Law.