Question

We see images because the rods and cones are generating nerve impulses for transmission to the brain. Occasionally the is one in which the bright parts of the object remain bright and the dark parts remain dark. In a negative afterimage Afterimages brain retains an image even after the impulses have stopped. These images are called afterimages. A positive afterimage the bright parts of the object appear dark and the dark parts appear bright. Center a red card on a black sheet of paper and stare intently at the card. After about 30 seconds or longer and without shifting the eyes, place a white sheet of paper over the red card. Describe in table 17.2 the color of the image that “appears" on the white paper. Repeat by placing green, blue, and yellow cards on the black paper and later covering with a white sheet. Table 17.2 Afterimages Card color Color of aftorimage Card color Color of afterimage Red blue-green (cyan) Yellow Blue yellow Green

don't know if I'm correct in thinking that red gives green, then vice versa... ans blue gives yellow, then vice versa.... ??

Answer 1

card colour	color of after mage
red	blue-green or cyan
blue	yellow
yellow	blue
green	magenta