The fact that hues at the short-wave end of the color spectrum appear bright at nightfall is a function of ______________?
Correct answer: A. Purkinje effect
- A. Purkinje effect
- B. Zeigarnik effect
- C. Young-Helmholtz effect
- D. light adaptation
Explanation
The Purkinje effect refers to the shift toward greater sensitivity to shorter wavelengths in dim light, making blue-green hues appear relatively brighter at nightfall. The Young-Helmholtz theory explains trichromatic color vision instead.
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