The Muller's-Lyer Illusion

The Müller-Lyer Illusion involves two lines of equal length, but one appears longer than the other because of the arrow-like figures at their ends. When the outward-pointing arrows face inward, the line looks shorter; when they point outward, it seems longer. This happens because our brain interprets the angles as cues for depth and perspective, tricking us into perceiving the lines as different lengths even though they are the same. It highlights how our visual perception is influenced by contextual cues and interpretive processes rather than just raw measurements.