Question

Your threshold for vision is higher on a sunny day than on a dark, moonless night. This is because of ___________.

a) Retinal Fatigue
b) Light Adaptation
c) Dark Adaptation
d) Perceptual Threshold

Answer 1

The correct answer is dark adaptation. In a dark environment, the pupils dilate and the rods become more sensitive to light.

Step-by-step explanation:

The correct answer is c) Dark Adaptation.

Dark adaptation refers to the process by which the eyes adjust to seeing in the dark. In a dark environment, the pupils dilate to allow more light to enter the eyes, and the rods in the retina become more sensitive to light. This allows for better vision in low-light conditions.

On the other hand, in a bright environment, the pupils constrict to limit the amount of light entering the eyes, and the cones in the retina are responsible for detecting color and fine details.