On a dark night,why do you see a faint star better if you focus slightly to the side of it?
A)Perception of faint light is better outside the fovea.
B)The pupil casts a shadow onto the fovea.
C)Cones are more abundant slightly outside the fovea than within it.
D)Perception of detail is better outside the fovea.

Question

On a dark night,why do you see a faint star better if you focus slightly to the side of it?​
A)Perception of faint light is better outside the fovea.
B)​The pupil casts a shadow onto the fovea.
C)​Cones are more abundant slightly outside the fovea than within it.
D)​Perception of detail is better outside the fovea.

Quizplus · Accepted Answer

The fovea, which is the central part of the retina, contains a high concentration of cones that are responsible for detailed vision. However, the peripheral parts of the retina have a higher concentration of rods that are better suited for perceiving faint light. Therefore, focusing slightly to the side of a faint star allows us to use the rods in the peripheral retina to detect the light more easily.

On a Dark Night,why Do You See a Faint Star