Which of the following illusions involves a horizontal line with arrowheads at each end appearing to be shorter than a horizontal line with open V's at each end of the line?
A)the Poggendorff illusion
B)the Munker-White illusion
C)the Müller-Lyer illusion
D)the Hering illusion

Question

Quizplus · Accepted Answer

This illusion is known as the Müller-Lyer illusion, which involves two horizontal lines of equal length, but with different sets of arrowheads or V's on each end. The line with arrowheads at each end appears shorter than the line with open V's at each end, despite being the same length.

Which of the Following Illusions Involves a Horizontal Line with Arrowheads