From experience, you know that commercial jets typically fly around 500 miles per hour at a height of 30,000 feet. However, as you watch one fly high overhead, it seems to slowly pass by. What monocular depth cue best explains this?
A) motion parallax
B) linear perspective
C) overlap
D) texture gradient

Question

Quizplus · Accepted Answer

The monocular depth cue that best explains the phenomenon of a commercial jet seeming to slowly pass by despite traveling at a high speed is motion parallax. This is because the relative movement of the jet in relation to the distant background creates a perception of slower speed, even though the jet is actually traveling at a high speed. The other cues (B) linear perspective, (C) overlap, and (D) texture gradient do not apply in this scenario.

From Experience, You Know That Commercial Jets Typically Fly Around