Which of the following is the best explanation of why it is difficult to discriminate the color of an object at night?
A) At night, dilation of pupils stimulates the retina, where more rods are located rather than cones.
B) The foveae are densely packed with cones.
C) Cones come in three types, each sensitive to different wavelengths of light.
D) As many as 100 cones may converge on one ganglion cell.

Question

Quizplus · Accepted Answer

At night, the dilation of pupils allows more light to enter the eye, stimulating the retina where there are more rods than cones. Rods are not as effective as cones in discriminating colors, making it difficult to differentiate colors at night.

Which of the Following Is the Best Explanation of Why