If you were to stare at a picture of the American flag for a while and then look at a plain sheet of paper, what would you see?
A) red and white stripes; white stars on a blue background
B) green and red stripes; black stars on a white background
C) green and black stripes; black stars on a yellow background
D) black and white stripes; white stars on a black background

Question

Quizplus · Accepted Answer

This is an example of an afterimage effect, where staring at the American flag's colors (red, white, and blue) causes the complementary colors (green, black, and yellow) to appear when looking at a plain surface.

If You Were to Stare at a Picture of the American