Suppose I stare at a yellow screen with green writing on it for a very long time

Question

Suppose I stare at a yellow screen with green writing on it for a very long time. I then look away, toward a white, featureless wall. What will I likely see? A. A black afterimage of the writing on the screen, and nothing else B. A blue afterimage of the screen, and an afterimage of the writing that looks magenta C. A magenta afterimage of the screen, and an afterimage of the writing that looks blue D. Nothing at all

Question 2

White light illuminates a surface, which absorbs nearly all of the blue light and about half of the green light. What color will the reflected light look like to us?

Brown

Yellow

Red

Orange

Question 3

Television screens combine colors using

Partitive mixing

Subtractive mixing

Lightness mixing

Additive mixing

Question 4

Just before the Battle of Midway in World War II, the U.S. submarine Trigger ran aground on a reef. The officers were wearing red goggles, so the bright lights inside the submarine wouldn't interfere with their ability to see in the dark ocean. On their maps, the reefs were marked in red. Why did they run aground?

Because the whole map would have looked dark

Because with the red filters on their goggles, the reefs would have looked the same color as the rest of the map, making it hard to identify them

Because with the red filters on their goggles, the afterimages of the reefs on the maps would have interfered with their view of the ocean floor

Because the goggles would have blocked their peripheral vision

Brown

Yellow

Red

Orange

Explanation / Answer

1 B. A blue afterimage of the screen, and an afterimage of the writing that looks magenta

2

Orange

Lightness mixing

4

Because with the red filters on their goggles, the afterimages of the reefs on the maps would have interfered with their view of the ocean floor

Orange

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