Bill wakes up early in the morning, and his room is fairly dark. He can see his shirt hanging on a hook. He knows it's a red shirt because he hung it up there before bed, but in the dark it looks dark gray. Why is that?

Respuesta :

Bill’s shirt looks dark gray in color because in the dim light, the cones in the eyes are ineffectual.  

Explanation:

Retina has two cells, holds the rods- for seeing black and white. The cones are responsible for seeing colors and turn a picture into an electrical message for the brain.

Retina in the eye contains the receptor cells. The cone cells become fatigued after long time exposure to a colored image.

A photoreceptor is responsible for adjusting bright light to darkness or vice versa. Rods and cones are two types of photoreceptors in the human retina.

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Universidad de Mexico