The explains why night vision (i.e. ,with rods)is colorblind.
A)Young-Helmholtz trichromatic theory
B)principle of unvariance
C)idea of complementary colors

Question

Quizplus · Accepted Answer

The principle of unvariance states that the response of a visual receptor (i.e., rod or cone) is only determined by the amount of light absorbed, regardless of the wavelength or color of the light. Since rods are more sensitive to low levels of light and are not specialized for detecting specific colors, they do not contribute to color vision and are colorblind. Therefore, the principle of unvariance explains why night vision with rods is colorblind.

The Explains Why Night Vision (I